Merge pull request #4940 from flevi29/key-actions-to-bitflags

Make keys `Action` use bitflags crate

.github/ISSUE_TEMPLATE/sprint_issue.md

@@ -22,6 +22,10 @@ Related product discussion:
 
 <!---If necessary, create a list with technical/product steps-->
 
+### Are you modifying a database?
+- [ ] If not, add the `no db change` label to your PR, and you're good to merge.
+- [ ] If yes, add the `db change` label to your PR. You'll receive a message explaining you what to do.
+
 ### Reminders when modifying the API
 
 - [ ] Update the openAPI file with utoipa:

.github/workflows/bench-manual.yml

@@ -1,28 +1,27 @@
 name: Bench (manual)
 
 on:
-    workflow_dispatch:
-        inputs:
-            workload:
-                description: 'The path to the workloads to execute (workloads/...)'
-                required: true
-                default: 'workloads/movies.json'
+  workflow_dispatch:
+    inputs:
+      workload:
+        description: "The path to the workloads to execute (workloads/...)"
+        required: true
+        default: "workloads/movies.json"
 
 env:
-    WORKLOAD_NAME: ${{ github.event.inputs.workload }}
+  WORKLOAD_NAME: ${{ github.event.inputs.workload }}
 
 jobs:
-    benchmarks:
-        name: Run and upload benchmarks
-        runs-on: benchmarks
-        timeout-minutes: 180 # 3h
-        steps:
-            - uses: actions/checkout@v3
-            - uses: dtolnay/rust-toolchain@1.81
-              with:
-                profile: minimal
-
-            - name: Run benchmarks - workload ${WORKLOAD_NAME} - branch ${{ github.ref }} - commit ${{ github.sha }}
-              run: |
-               cargo xtask bench --api-key "${{ secrets.BENCHMARK_API_KEY }}" --dashboard-url "${{ vars.BENCHMARK_DASHBOARD_URL }}" --reason "Manual [Run #${{ github.run_id }}](https://github.com/meilisearch/meilisearch/actions/runs/${{ github.run_id }})" -- ${WORKLOAD_NAME}
+  benchmarks:
+    name: Run and upload benchmarks
+    runs-on: benchmarks
+    timeout-minutes: 180 # 3h
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@1.85
+        with:
+          profile: minimal
 
+      - name: Run benchmarks - workload ${WORKLOAD_NAME} - branch ${{ github.ref }} - commit ${{ github.sha }}
+        run: |
+          cargo xtask bench --api-key "${{ secrets.BENCHMARK_API_KEY }}" --dashboard-url "${{ vars.BENCHMARK_DASHBOARD_URL }}" --reason "Manual [Run #${{ github.run_id }}](https://github.com/meilisearch/meilisearch/actions/runs/${{ github.run_id }})" -- ${WORKLOAD_NAME}

.github/workflows/bench-pr.yml

@@ -1,82 +1,82 @@
 name: Bench (PR)
 on:
-    issue_comment:
-        types: [created]
+  issue_comment:
+    types: [created]
 
 permissions:
-    issues: write
+  issues: write
 
 env:
-    GH_TOKEN: ${{ secrets.MEILI_BOT_GH_PAT }}
+  GH_TOKEN: ${{ secrets.MEILI_BOT_GH_PAT }}
 
 jobs:
-    run-benchmarks-on-comment:
-      if: startsWith(github.event.comment.body, '/bench')
-      name: Run and upload benchmarks
-      runs-on: benchmarks
-      timeout-minutes: 180 # 3h
-      steps:
-        - name: Check permissions
-          id: permission
-          env:
-            PR_AUTHOR: ${{github.event.issue.user.login }}
-            COMMENT_AUTHOR: ${{github.event.comment.user.login }}
-            REPOSITORY: ${{github.repository}}
-            PR_ID: ${{github.event.issue.number}}
-          run: |
-            PR_REPOSITORY=$(gh api /repos/"$REPOSITORY"/pulls/"$PR_ID" --jq .head.repo.full_name)
-            if $(gh api /repos/"$REPOSITORY"/collaborators/"$PR_AUTHOR"/permission --jq .user.permissions.push)
-            then
-              echo "::notice title=Authentication success::PR author authenticated"
-            else
-              echo "::error title=Authentication error::PR author doesn't have push permission on this repository"
-              exit 1
-            fi
-            if $(gh api /repos/"$REPOSITORY"/collaborators/"$COMMENT_AUTHOR"/permission --jq .user.permissions.push)
-            then
-              echo "::notice title=Authentication success::Comment author authenticated"
-            else
-              echo "::error title=Authentication error::Comment author doesn't have push permission on this repository"
-              exit 1
-            fi
-            if [ "$PR_REPOSITORY" = "$REPOSITORY" ]
-            then
-              echo "::notice title=Authentication success::PR started from main repository"
-            else
-              echo "::error title=Authentication error::PR started from a fork"
-              exit 1
-            fi
+  run-benchmarks-on-comment:
+    if: startsWith(github.event.comment.body, '/bench')
+    name: Run and upload benchmarks
+    runs-on: benchmarks
+    timeout-minutes: 180 # 3h
+    steps:
+      - name: Check permissions
+        id: permission
+        env:
+          PR_AUTHOR: ${{github.event.issue.user.login }}
+          COMMENT_AUTHOR: ${{github.event.comment.user.login }}
+          REPOSITORY: ${{github.repository}}
+          PR_ID: ${{github.event.issue.number}}
+        run: |
+          PR_REPOSITORY=$(gh api /repos/"$REPOSITORY"/pulls/"$PR_ID" --jq .head.repo.full_name)
+          if $(gh api /repos/"$REPOSITORY"/collaborators/"$PR_AUTHOR"/permission --jq .user.permissions.push)
+          then
+            echo "::notice title=Authentication success::PR author authenticated"
+          else
+            echo "::error title=Authentication error::PR author doesn't have push permission on this repository"
+            exit 1
+          fi
+          if $(gh api /repos/"$REPOSITORY"/collaborators/"$COMMENT_AUTHOR"/permission --jq .user.permissions.push)
+          then
+            echo "::notice title=Authentication success::Comment author authenticated"
+          else
+            echo "::error title=Authentication error::Comment author doesn't have push permission on this repository"
+            exit 1
+          fi
+          if [ "$PR_REPOSITORY" = "$REPOSITORY" ]
+          then
+            echo "::notice title=Authentication success::PR started from main repository"
+          else
+            echo "::error title=Authentication error::PR started from a fork"
+            exit 1
+          fi
 
-        - name: Check for Command
-          id: command
-          uses: xt0rted/slash-command-action@v2
-          with:
-              command: bench
-              reaction-type: "rocket"
-              repo-token: ${{ env.GH_TOKEN }}
+      - name: Check for Command
+        id: command
+        uses: xt0rted/slash-command-action@v2
+        with:
+          command: bench
+          reaction-type: "rocket"
+          repo-token: ${{ env.GH_TOKEN }}
 
-        - uses: xt0rted/pull-request-comment-branch@v3
-          id: comment-branch
-          with:
-            repo_token: ${{ env.GH_TOKEN }}
+      - uses: xt0rted/pull-request-comment-branch@v3
+        id: comment-branch
+        with:
+          repo_token: ${{ env.GH_TOKEN }}
 
-        - uses: actions/checkout@v3
-          if: success()
-          with:
-            fetch-depth: 0 # fetch full history to be able to get main commit sha
-            ref: ${{ steps.comment-branch.outputs.head_ref }}
+      - uses: actions/checkout@v3
+        if: success()
+        with:
+          fetch-depth: 0 # fetch full history to be able to get main commit sha
+          ref: ${{ steps.comment-branch.outputs.head_ref }}
 
-        - uses: dtolnay/rust-toolchain@1.81
-          with:
-            profile: minimal
+      - uses: dtolnay/rust-toolchain@1.85
+        with:
+          profile: minimal
 
-        - name: Run benchmarks on PR ${{ github.event.issue.id }}
-          run: |
-            cargo xtask bench --api-key "${{ secrets.BENCHMARK_API_KEY }}" \
-               --dashboard-url "${{ vars.BENCHMARK_DASHBOARD_URL }}" \
-               --reason "[Comment](${{ github.event.comment.html_url }}) on [#${{ github.event.issue.number }}](${{ github.event.issue.html_url }})" \
-               -- ${{ steps.command.outputs.command-arguments }} > benchlinks.txt
+      - name: Run benchmarks on PR ${{ github.event.issue.id }}
+        run: |
+          cargo xtask bench --api-key "${{ secrets.BENCHMARK_API_KEY }}" \
+             --dashboard-url "${{ vars.BENCHMARK_DASHBOARD_URL }}" \
+             --reason "[Comment](${{ github.event.comment.html_url }}) on [#${{ github.event.issue.number }}](${{ github.event.issue.html_url }})" \
+             -- ${{ steps.command.outputs.command-arguments }} > benchlinks.txt
 
-        - name: Send comment in PR
-          run: |
-            gh pr comment ${{github.event.issue.number}} --body-file benchlinks.txt
+      - name: Send comment in PR
+        run: |
+          gh pr comment ${{github.event.issue.number}} --body-file benchlinks.txt

.github/workflows/bench-push-indexing.yml

@@ -1,23 +1,22 @@
 name: Indexing bench (push)
 
 on:
-    push:
-        branches:
-            - main
+  push:
+    branches:
+      - main
 
 jobs:
-    benchmarks:
-        name: Run and upload benchmarks
-        runs-on: benchmarks
-        timeout-minutes: 180 # 3h
-        steps:
-          - uses: actions/checkout@v3
-          - uses: dtolnay/rust-toolchain@1.81
-            with:
-              profile: minimal
-
-          # Run benchmarks
-          - name: Run benchmarks - Dataset ${BENCH_NAME} - Branch main - Commit ${{ github.sha }}
-            run: |
-              cargo xtask bench --api-key "${{ secrets.BENCHMARK_API_KEY }}" --dashboard-url "${{ vars.BENCHMARK_DASHBOARD_URL }}" --reason "Push on `main` [Run #${{ github.run_id }}](https://github.com/meilisearch/meilisearch/actions/runs/${{ github.run_id }})" -- workloads/*.json
+  benchmarks:
+    name: Run and upload benchmarks
+    runs-on: benchmarks
+    timeout-minutes: 180 # 3h
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@1.85
+        with:
+          profile: minimal
 
+      # Run benchmarks
+      - name: Run benchmarks - Dataset ${BENCH_NAME} - Branch main - Commit ${{ github.sha }}
+        run: |
+          cargo xtask bench --api-key "${{ secrets.BENCHMARK_API_KEY }}" --dashboard-url "${{ vars.BENCHMARK_DASHBOARD_URL }}" --reason "Push on `main` [Run #${{ github.run_id }}](https://github.com/meilisearch/meilisearch/actions/runs/${{ github.run_id }})" -- workloads/*.json

.github/workflows/benchmarks-manual.yml

@@ -4,9 +4,9 @@ on:
   workflow_dispatch:
     inputs:
       dataset_name:
-        description: 'The name of the dataset used to benchmark (search_songs, search_wiki, search_geo or indexing)'
+        description: "The name of the dataset used to benchmark (search_songs, search_wiki, search_geo or indexing)"
         required: false
-        default: 'search_songs'
+        default: "search_songs"
 
 env:
   BENCH_NAME: ${{ github.event.inputs.dataset_name }}
@@ -18,7 +18,7 @@ jobs:
     timeout-minutes: 4320 # 72h
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
 
@@ -67,7 +67,7 @@ jobs:
           out_dir: critcmp_results
 
       # Helper
-      - name: 'README: compare with another benchmark'
+      - name: "README: compare with another benchmark"
         run: |
           echo "${{ steps.file.outputs.basename }}.json has just been pushed."
           echo 'How to compare this benchmark with another one?'

.github/workflows/benchmarks-pr.yml

@@ -44,7 +44,7 @@ jobs:
             exit 1
           fi
 
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
 

.github/workflows/benchmarks-push-indexing.yml

@@ -16,7 +16,7 @@ jobs:
     timeout-minutes: 4320 # 72h
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
 
@@ -69,7 +69,7 @@ jobs:
         run: telegraf --config https://eu-central-1-1.aws.cloud2.influxdata.com/api/v2/telegrafs/08b52e34a370b000 --once --debug
 
       # Helper
-      - name: 'README: compare with another benchmark'
+      - name: "README: compare with another benchmark"
         run: |
           echo "${{ steps.file.outputs.basename }}.json has just been pushed."
           echo 'How to compare this benchmark with another one?'

.github/workflows/benchmarks-push-search-geo.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: benchmarks
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
 
@@ -68,7 +68,7 @@ jobs:
         run: telegraf --config https://eu-central-1-1.aws.cloud2.influxdata.com/api/v2/telegrafs/08b52e34a370b000 --once --debug
 
       # Helper
-      - name: 'README: compare with another benchmark'
+      - name: "README: compare with another benchmark"
         run: |
           echo "${{ steps.file.outputs.basename }}.json has just been pushed."
           echo 'How to compare this benchmark with another one?'

.github/workflows/benchmarks-push-search-songs.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: benchmarks
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
 
@@ -68,7 +68,7 @@ jobs:
         run: telegraf --config https://eu-central-1-1.aws.cloud2.influxdata.com/api/v2/telegrafs/08b52e34a370b000 --once --debug
 
       # Helper
-      - name: 'README: compare with another benchmark'
+      - name: "README: compare with another benchmark"
         run: |
           echo "${{ steps.file.outputs.basename }}.json has just been pushed."
           echo 'How to compare this benchmark with another one?'

.github/workflows/benchmarks-push-search-wiki.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: benchmarks
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
 
@@ -68,7 +68,7 @@ jobs:
         run: telegraf --config https://eu-central-1-1.aws.cloud2.influxdata.com/api/v2/telegrafs/08b52e34a370b000 --once --debug
 
       # Helper
-      - name: 'README: compare with another benchmark'
+      - name: "README: compare with another benchmark"
         run: |
           echo "${{ steps.file.outputs.basename }}.json has just been pushed."
           echo 'How to compare this benchmark with another one?'

.github/workflows/check-valid-milestone.yml

@@ -17,7 +17,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Validate PR milestone
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |

.github/workflows/db-change-comments.yml

@@ -0,0 +1,57 @@
+name: Comment when db change labels are added
+
+on:
+  pull_request:
+    types: [labeled]
+
+env:
+  MESSAGE: |
+    ### Hello, I'm a bot 🤖 
+
+    You are receiving this message because you declared that this PR make changes to the Meilisearch database.
+    Depending on the nature of the change, additional actions might be required on your part. The following sections detail the additional actions depending on the nature of the change, please copy the relevant section in the description of your PR, and make sure to perform the required actions.
+
+    Thank you for contributing to Meilisearch :heart:
+
+    ## This PR makes forward-compatible changes
+
+    *Forward-compatible changes are changes to the database such that databases created in an older version of Meilisearch are still valid in the new version of Meilisearch. They usually represent additive changes, like adding a new optional attribute or setting.*
+
+    - [ ] Detail the change to the DB format and why they are forward compatible
+    - [ ] Forward-compatibility: A database created before this PR and using the features touched by this PR was able to be opened by a Meilisearch produced by the code of this PR.
+
+
+    ## This PR makes breaking changes
+
+    *Breaking changes are changes to the database such that databases created in an older version of Meilisearch need changes to remain valid in the new version of Meilisearch. This typically happens when the way to store the data changed (change of database, new required key, etc). This can also happen due to breaking changes in the API of an experimental feature. ⚠️ This kind of changes are more difficult to achieve safely, so proceed with caution and test dumpless upgrade right before merging the PR.*
+
+    - [ ] Detail the changes to the DB format,
+        - [ ] which are compatible, and why
+        - [ ] which are not compatible, why, and how they will be fixed up in the upgrade
+     - [ ] /!\ Ensure all the read operations still work!
+        - If the change happened in milli, you may need to check the version of the database before doing any read operation
+        - If the change happened in the index-scheduler, make sure the new code can immediately read the old database
+        - If the change happened in the meilisearch-auth database, reach out to the team; we don't know yet how to handle these changes
+      - [ ] Write the code to go from the old database to the new one
+        - If the change happened in milli, the upgrade function should be written and called [here](https://github.com/meilisearch/meilisearch/blob/3fd86e8d76d7d468b0095d679adb09211ca3b6c0/crates/milli/src/update/upgrade/mod.rs#L24-L47)
+        - If the change happened in the index-scheduler, we've never done it yet, but the right place to do it should be [here](https://github.com/meilisearch/meilisearch/blob/3fd86e8d76d7d468b0095d679adb09211ca3b6c0/crates/index-scheduler/src/scheduler/process_upgrade/mod.rs#L13)
+      - [ ] Write an integration test [here](https://github.com/meilisearch/meilisearch/blob/main/crates/meilisearch/tests/upgrade/mod.rs) ensuring you can read the old database, upgrade to the new database, and read the new database as expected
+    
+
+jobs:
+  add-comment:
+    runs-on: ubuntu-latest
+    if: github.event.label.name == 'db change'
+    steps:
+      - name: Add comment
+        uses: actions/github-script@v7
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const message = process.env.MESSAGE;
+            github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: message
+            })

.github/workflows/db-change-missing.yml

@@ -0,0 +1,28 @@
+name: Check db change labels
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled, unlabeled]
+
+env:
+  GH_TOKEN: ${{ secrets.MEILI_BOT_GH_PAT }}
+
+jobs:
+  check-labels:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Check db change labels
+        id: check_labels
+        run: |
+          URL=/repos/meilisearch/meilisearch/pulls/${{ github.event.pull_request.number }}/labels
+          echo ${{ github.event.pull_request.number }}
+          echo $URL
+          LABELS=$(gh api -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" /repos/meilisearch/meilisearch/issues/${{ github.event.pull_request.number }}/labels -q .[].name)
+          if [[ ! "$LABELS" =~ "db change" && ! "$LABELS" =~ "no db change" ]]; then
+            echo "::error::Pull request must contain either the 'db change' or 'no db change' label."
+            exit 1
+          else
+            echo "The label is set"
+          fi

.github/workflows/flaky-tests.yml

@@ -17,7 +17,7 @@ jobs:
         run: |
           apt-get update && apt-get install -y curl
           apt-get install build-essential -y
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Install cargo-flaky
         run: cargo install cargo-flaky
       - name: Run cargo flaky in the dumps

.github/workflows/fuzzer-indexing.yml

@@ -12,7 +12,7 @@ jobs:
     timeout-minutes: 4320 # 72h
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
 

.github/workflows/milestone-workflow.yml

@@ -5,6 +5,7 @@ name: Milestone's workflow
 # For each Milestone created (not opened!), and if the release is NOT a patch release (only the patch changed)
 # - the roadmap issue is created, see https://github.com/meilisearch/engine-team/blob/main/issue-templates/roadmap-issue.md
 # - the changelog issue is created, see https://github.com/meilisearch/engine-team/blob/main/issue-templates/changelog-issue.md
+# - update the ruleset to add the current release version to the list of allowed versions and be able to use the merge queue.
 
 # For each Milestone closed
 # - the `release_version` label is created
@@ -21,10 +22,9 @@ env:
   GH_TOKEN: ${{ secrets.MEILI_BOT_GH_PAT }}
 
 jobs:
-
-# -----------------
-# MILESTONE CREATED
-# -----------------
+  # -----------------
+  # MILESTONE CREATED
+  # -----------------
 
   get-release-version:
     if: github.event.action == 'created'
@@ -148,9 +148,41 @@ jobs:
             --body-file $ISSUE_TEMPLATE \
             --milestone $MILESTONE_VERSION
 
-# ----------------
-# MILESTONE CLOSED
-# ----------------
+  update-ruleset:
+    runs-on: ubuntu-latest
+    if: github.event.action == 'created'
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install jq
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y jq
+      - name: Update ruleset
+        env:
+          # gh api repos/meilisearch/meilisearch/rulesets --jq '.[] | {name: .name, id: .id}'
+          RULESET_ID: 4253297
+          BRANCH_NAME: ${{ github.event.inputs.branch_name }}
+        run: |
+          echo "RULESET_ID: ${{ env.RULESET_ID }}"
+          echo "BRANCH_NAME: ${{ env.BRANCH_NAME }}"
+
+          # Get current ruleset conditions
+          CONDITIONS=$(gh api repos/meilisearch/meilisearch/rulesets/${{ env.RULESET_ID }} --jq '{ conditions: .conditions }')
+
+          # Update the conditions by appending the milestone version
+          UPDATED_CONDITIONS=$(echo $CONDITIONS | jq '.conditions.ref_name.include += ["refs/heads/release-'${{ env.MILESTONE_VERSION }}'"]')
+
+          # Update the ruleset from stdin (-)
+          echo $UPDATED_CONDITIONS |
+            gh api repos/meilisearch/meilisearch/rulesets/${{ env.RULESET_ID }} \
+              --method PUT \
+              -H "Accept: application/vnd.github+json" \
+              -H "X-GitHub-Api-Version: 2022-11-28" \
+              --input -
+
+  # ----------------
+  # MILESTONE CLOSED
+  # ----------------
 
   create-release-label:
     if: github.event.action == 'closed'

.github/workflows/publish-apt-brew-pkg.yml

@@ -25,7 +25,7 @@ jobs:
         run: |
           apt-get update && apt-get install -y curl
           apt-get install build-essential -y
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Install cargo-deb
         run: cargo install cargo-deb
       - uses: actions/checkout@v3

.github/workflows/publish-binaries.yml

@@ -45,7 +45,7 @@ jobs:
         run: |
           apt-get update && apt-get install -y curl
           apt-get install build-essential -y
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Build
         run: cargo build --release --locked
       # No need to upload binaries for dry run (cron)
@@ -75,7 +75,7 @@ jobs:
             asset_name: meilisearch-windows-amd64.exe
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Build
         run: cargo build --release --locked
       # No need to upload binaries for dry run (cron)
@@ -101,7 +101,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
       - name: Installing Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81
+        uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
           target: ${{ matrix.target }}
@@ -148,7 +148,7 @@ jobs:
           add-apt-repository "deb [arch=$(dpkg --print-architecture)] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
           apt-get update -y && apt-get install -y docker-ce
       - name: Installing Rust toolchain
-        uses: dtolnay/rust-toolchain@1.81
+        uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
           target: ${{ matrix.target }}

.github/workflows/sdks-tests.yml

@@ -22,7 +22,7 @@ jobs:
     outputs:
       docker-image: ${{ steps.define-image.outputs.docker-image }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
       - name: Define the Docker image we need to use
         id: define-image
         run: |
@@ -46,7 +46,7 @@ jobs:
       MEILISEARCH_VERSION: ${{ needs.define-docker-image.outputs.docker-image }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-dotnet
       - name: Setup .NET Core
@@ -75,7 +75,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-dart
       - uses: dart-lang/setup-dart@v1
@@ -103,7 +103,7 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: stable
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-go
       - name: Get dependencies
@@ -129,7 +129,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-java
       - name: Set up Java
@@ -156,7 +156,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-js
       - name: Setup node
@@ -191,7 +191,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-php
       - name: Install PHP
@@ -220,7 +220,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-python
       - name: Set up Python
@@ -245,7 +245,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-ruby
       - name: Set up Ruby 3
@@ -270,7 +270,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-rust
       - name: Build
@@ -291,7 +291,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-swift
       - name: Run tests
@@ -314,7 +314,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-js-plugins
       - name: Setup node
@@ -345,7 +345,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-rails
       - name: Set up Ruby 3
@@ -369,7 +369,7 @@ jobs:
         ports:
           - '7700:7700'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
         with:
           repository: meilisearch/meilisearch-symfony
       - name: Install PHP

.github/workflows/test-suite.yml

@@ -21,15 +21,15 @@ jobs:
       # Use ubuntu-22.04 to compile with glibc 2.35
       image: ubuntu:22.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
       - name: Install needed dependencies
         run: |
           apt-get update && apt-get install -y curl
           apt-get install build-essential -y
       - name: Setup test with Rust stable
-        uses: dtolnay/rust-toolchain@1.81
+        uses: dtolnay/rust-toolchain@1.85
       - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.7.7
+        uses: Swatinem/rust-cache@v2.7.8
       - name: Run cargo check without any default features
         uses: actions-rs/cargo@v1
         with:
@@ -51,8 +51,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.7.7
-      - uses: dtolnay/rust-toolchain@1.81
+        uses: Swatinem/rust-cache@v2.7.8
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Run cargo check without any default features
         uses: actions-rs/cargo@v1
         with:
@@ -77,7 +77,7 @@ jobs:
         run: |
           apt-get update
           apt-get install --assume-yes build-essential curl
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Run cargo build with almost all features
         run: |
           cargo build --workspace --locked --release --features "$(cargo xtask list-features --exclude-feature cuda,test-ollama)"
@@ -91,7 +91,7 @@ jobs:
     env:
       MEILI_TEST_OLLAMA_SERVER: "http://localhost:11434"
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v3
       - name: Install Ollama
         run: |
           curl -fsSL https://ollama.com/install.sh | sudo -E sh
@@ -129,7 +129,7 @@ jobs:
         run: |
           apt-get update
           apt-get install --assume-yes build-essential curl
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Run cargo tree without default features and check lindera is not present
         run: |
           if cargo tree -f '{p} {f}' -e normal --no-default-features | grep -qz lindera; then
@@ -153,9 +153,9 @@ jobs:
         run: |
           apt-get update && apt-get install -y curl
           apt-get install build-essential -y
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
       - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.7.7
+        uses: Swatinem/rust-cache@v2.7.8
       - name: Run tests in debug
         uses: actions-rs/cargo@v1
         with:
@@ -167,12 +167,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
           components: clippy
       - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.7.7
+        uses: Swatinem/rust-cache@v2.7.8
       - name: Run cargo clippy
         uses: actions-rs/cargo@v1
         with:
@@ -184,14 +184,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
           toolchain: nightly-2024-07-09
           override: true
           components: rustfmt
       - name: Cache dependencies
-        uses: Swatinem/rust-cache@v2.7.7
+        uses: Swatinem/rust-cache@v2.7.8
       - name: Run cargo fmt
         # Since we never ran the `build.rs` script in the benchmark directory we are missing one auto-generated import file.
         # Since we want to trigger (and fail) this action as fast as possible, instead of building the benchmark crate

.github/workflows/update-cargo-toml-version.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       new_version:
-        description: 'The new version (vX.Y.Z)'
+        description: "The new version (vX.Y.Z)"
         required: true
 
 env:
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.81
+      - uses: dtolnay/rust-toolchain@1.85
         with:
           profile: minimal
       - name: Install sd

Cargo.lock

@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "actix-codec"
@@ -758,9 +758,9 @@ dependencies = [
 
 [[package]]
 name = "bytemuck_derive"
-version = "1.6.0"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4da9a32f3fed317401fa3c862968128267c3106685286e15d5aaa3d7389c2f60"
+checksum = "7ecc273b49b3205b83d648f0690daa588925572cc5063745bfe547fe7ec8e1a1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1255,9 +1255,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.14"
+version = "0.5.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ba6d68e24814cb8de6bb986db8222d3a027d15872cabc0d18817bc3c0e4471"
+checksum = "82b8f8f868b36967f9606790d1903570de9ceaf870a7bf9fbbd3016d636a2cb2"
 dependencies = [
  "crossbeam-utils",
 ]
@@ -3710,6 +3710,7 @@ version = "1.14.0"
 dependencies = [
  "actix-web",
  "anyhow",
+ "bitflags 2.9.0",
  "bumpalo",
  "bumparaw-collections",
  "convert_case 0.6.0",
@@ -4531,22 +4532,21 @@ dependencies = [
 
 [[package]]
 name = "procfs"
-version = "0.16.0"
+version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "731e0d9356b0c25f16f33b5be79b1c57b562f141ebfcdb0ad8ac2c13a24293b4"
+checksum = "cc5b72d8145275d844d4b5f6d4e1eef00c8cd889edb6035c21675d1bb1f45c9f"
 dependencies = [
  "bitflags 2.9.0",
  "hex",
- "lazy_static",
  "procfs-core",
  "rustix",
 ]
 
 [[package]]
 name = "procfs-core"
-version = "0.16.0"
+version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d3554923a69f4ce04c4a754260c338f505ce22642d3830e049a399fc2059a29"
+checksum = "239df02d8349b06fc07398a3a1697b06418223b1c7725085e801e7c0fc6a12ec"
 dependencies = [
  "bitflags 2.9.0",
  "hex",
@@ -4554,9 +4554,9 @@ dependencies = [
 
 [[package]]
 name = "prometheus"
-version = "0.13.4"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d33c28a30771f7f96db69893f78b857f7450d7e0237e9c8fc6427a81bae7ed1"
+checksum = "3ca5326d8d0b950a9acd87e6a3f94745394f62e4dae1b1ee22b2bc0c394af43a"
 dependencies = [
  "cfg-if",
  "fnv",
@@ -4566,14 +4566,28 @@ dependencies = [
  "parking_lot",
  "procfs",
  "protobuf",
- "thiserror 1.0.69",
+ "thiserror 2.0.9",
 ]
 
 [[package]]
 name = "protobuf"
-version = "2.28.0"
+version = "3.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "106dd99e98437432fed6519dedecfade6a06a73bb7b2a1e019fdd2bee5778d94"
+checksum = "d65a1d4ddae7d8b5de68153b48f6aa3bba8cb002b243dbdbc55a5afbc98f99f4"
+dependencies = [
+ "once_cell",
+ "protobuf-support",
+ "thiserror 1.0.69",
+]
+
+[[package]]
+name = "protobuf-support"
+version = "3.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e36c2f31e0a47f9280fb347ef5e461ffcd2c52dd520d8e216b52f93b0b0d7d6"
+dependencies = [
+ "thiserror 1.0.69",
+]
 
 [[package]]
 name = "ptr_meta"
@@ -5801,9 +5815,9 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "1.42.0"
+version = "1.43.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5cec9b21b0450273377fc97bd4c33a8acffc8c996c987a7c5b319a0083707551"
+checksum = "492a604e2fd7f814268a378409e6c92b5525d747d10db9a229723f55a417958c"
 dependencies = [
  "backtrace",
  "bytes",
@@ -5819,9 +5833,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-macros"
-version = "2.4.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
+checksum = "6e06d43f1345a3bcd39f6a56dbb7dcab2ba47e68e8ac134855e7e2bdbaf8cab8"
 dependencies = [
  "proc-macro2",
  "quote",

Dockerfile

@@ -1,5 +1,5 @@
 # Compile
-FROM    rust:1.81.0-alpine3.20 AS compiler
+FROM    rust:1.85-alpine3.20 AS compiler
 
 RUN     apk add -q --no-cache build-base openssl-dev
 

assets/grafana-dashboard.json

@@ -1501,6 +1501,300 @@
       "title": "Task queue latency",
       "type": "timeseries"
     },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${DS_PROMETHEUS}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "drawStyle": "line",
+            "fillOpacity": 15,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "never",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green"
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "none"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 11,
+        "w": 12,
+        "x": 12,
+        "y": 51
+      },
+      "id": 29,
+      "interval": "5s",
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "right",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "8.1.4",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "${DS_PROMETHEUS}"
+          },
+          "editorMode": "builder",
+          "exemplar": true,
+          "expr": "meilisearch_task_queue_used_size{instance=\"$instance\", job=\"$job\"}",
+          "interval": "",
+          "legendFormat": "{{value}} ",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Task queue used size in bytes",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${DS_PROMETHEUS}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "drawStyle": "line",
+            "fillOpacity": 15,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "never",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green"
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "none"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 11,
+        "w": 12,
+        "x": 12,
+        "y": 51
+      },
+      "id": 29,
+      "interval": "5s",
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "right",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "8.1.4",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "${DS_PROMETHEUS}"
+          },
+          "editorMode": "builder",
+          "exemplar": true,
+          "expr": "meilisearch_task_queue_size_until_stop_registering{instance=\"$instance\", job=\"$job\"}",
+          "interval": "",
+          "legendFormat": "{{value}} ",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Task queue available size until it stop receiving tasks.",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${DS_PROMETHEUS}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "custom": {
+            "axisBorderShow": false,
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
+            "axisLabel": "",
+            "axisPlacement": "auto",
+            "barAlignment": 0,
+            "drawStyle": "line",
+            "fillOpacity": 15,
+            "gradientMode": "none",
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            },
+            "insertNulls": false,
+            "lineInterpolation": "linear",
+            "lineWidth": 1,
+            "pointSize": 5,
+            "scaleDistribution": {
+              "type": "linear"
+            },
+            "showPoints": "never",
+            "spanNulls": false,
+            "stacking": {
+              "group": "A",
+              "mode": "none"
+            },
+            "thresholdsStyle": {
+              "mode": "off"
+            }
+          },
+          "mappings": [],
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green"
+              },
+              {
+                "color": "red",
+                "value": 80
+              }
+            ]
+          },
+          "unit": "none"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 11,
+        "w": 12,
+        "x": 12,
+        "y": 51
+      },
+      "id": 29,
+      "interval": "5s",
+      "options": {
+        "legend": {
+          "calcs": [],
+          "displayMode": "list",
+          "placement": "right",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "pluginVersion": "8.1.4",
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "${DS_PROMETHEUS}"
+          },
+          "editorMode": "builder",
+          "exemplar": true,
+          "expr": "meilisearch_task_queue_max_size{instance=\"$instance\", job=\"$job\"}",
+          "interval": "",
+          "legendFormat": "{{value}} ",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "Task queue maximum possible size",
+      "type": "stat"
+    },
     {
       "collapsed": true,
       "datasource": {

crates/dump/src/lib.rs

@@ -237,7 +237,7 @@ pub(crate) mod test {
     use meilisearch_types::milli::{self, FilterableAttributesRule};
     use meilisearch_types::settings::{Checked, FacetingSettings, Settings};
     use meilisearch_types::task_view::DetailsView;
-    use meilisearch_types::tasks::{Details, Kind, Status};
+    use meilisearch_types::tasks::{BatchStopReason, Details, Kind, Status};
     use serde_json::{json, Map, Value};
     use time::macros::datetime;
     use uuid::Uuid;
@@ -334,6 +334,7 @@ pub(crate) mod test {
             }),
             started_at: datetime!(2022-11-20 0:00 UTC),
             finished_at: Some(datetime!(2022-11-21 0:00 UTC)),
+            stop_reason: BatchStopReason::Unspecified.to_string(),
         }]
     }
 

crates/dump/src/reader/v4/meta.rs

@@ -108,7 +108,7 @@ where
         /// not supported on untagged enums.
         struct StarOrVisitor<T>(PhantomData<T>);
 
-        impl<'de, T, FE> Visitor<'de> for StarOrVisitor<T>
+        impl<T, FE> Visitor<'_> for StarOrVisitor<T>
         where
             T: FromStr<Err = FE>,
             FE: Display,

crates/dump/src/reader/v4/tasks.rs

@@ -99,7 +99,7 @@ impl Task {
     /// Return true when a task is finished.
     /// A task is finished when its last state is either `Succeeded` or `Failed`.
     pub fn is_finished(&self) -> bool {
-        self.events.last().map_or(false, |event| {
+        self.events.last().is_some_and(|event| {
             matches!(event, TaskEvent::Succeded { .. } | TaskEvent::Failed { .. })
         })
     }

crates/dump/src/reader/v5/meta.rs

@@ -108,7 +108,7 @@ where
         /// not supported on untagged enums.
         struct StarOrVisitor<T>(PhantomData<T>);
 
-        impl<'de, T, FE> Visitor<'de> for StarOrVisitor<T>
+        impl<T, FE> Visitor<'_> for StarOrVisitor<T>
         where
             T: FromStr<Err = FE>,
             FE: Display,

crates/dump/src/reader/v5/tasks.rs

@@ -114,7 +114,7 @@ impl Task {
     /// Return true when a task is finished.
     /// A task is finished when its last state is either `Succeeded` or `Failed`.
     pub fn is_finished(&self) -> bool {
-        self.events.last().map_or(false, |event| {
+        self.events.last().is_some_and(|event| {
             matches!(event, TaskEvent::Succeeded { .. } | TaskEvent::Failed { .. })
         })
     }

crates/filter-parser/src/error.rs

@@ -35,7 +35,7 @@ impl<E> NomErrorExt<E> for nom::Err<E> {
 pub fn cut_with_err<'a, O>(
     mut parser: impl FnMut(Span<'a>) -> IResult<'a, O>,
     mut with: impl FnMut(Error<'a>) -> Error<'a>,
-) -> impl FnMut(Span<'a>) -> IResult<O> {
+) -> impl FnMut(Span<'a>) -> IResult<'a, O> {
     move |input| match parser.parse(input) {
         Err(nom::Err::Error(e)) => Err(nom::Err::Failure(with(e))),
         rest => rest,
@@ -121,7 +121,7 @@ impl<'a> ParseError<Span<'a>> for Error<'a> {
     }
 }
 
-impl<'a> Display for Error<'a> {
+impl Display for Error<'_> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         let input = self.context.fragment();
         // When printing our error message we want to escape all `\n` to be sure we keep our format with the

crates/filter-parser/src/lib.rs

@@ -80,7 +80,7 @@ pub struct Token<'a> {
     value: Option<String>,
 }
 
-impl<'a> PartialEq for Token<'a> {
+impl PartialEq for Token<'_> {
     fn eq(&self, other: &Self) -> bool {
         self.span.fragment() == other.span.fragment()
     }
@@ -226,7 +226,7 @@ impl<'a> FilterCondition<'a> {
         }
     }
 
-    pub fn parse(input: &'a str) -> Result<Option<Self>, Error> {
+    pub fn parse(input: &'a str) -> Result<Option<Self>, Error<'a>> {
         if input.trim().is_empty() {
             return Ok(None);
         }
@@ -527,7 +527,7 @@ pub fn parse_filter(input: Span) -> IResult<FilterCondition> {
     terminated(|input| parse_expression(input, 0), eof)(input)
 }
 
-impl<'a> std::fmt::Display for FilterCondition<'a> {
+impl std::fmt::Display for FilterCondition<'_> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             FilterCondition::Not(filter) => {
@@ -576,7 +576,8 @@ impl<'a> std::fmt::Display for FilterCondition<'a> {
         }
     }
 }
-impl<'a> std::fmt::Display for Condition<'a> {
+
+impl std::fmt::Display for Condition<'_> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             Condition::GreaterThan(token) => write!(f, "> {token}"),
@@ -594,7 +595,8 @@ impl<'a> std::fmt::Display for Condition<'a> {
         }
     }
 }
-impl<'a> std::fmt::Display for Token<'a> {
+
+impl std::fmt::Display for Token<'_> {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         write!(f, "{{{}}}", self.value())
     }

crates/filter-parser/src/value.rs

@@ -52,7 +52,7 @@ fn quoted_by(quote: char, input: Span) -> IResult<Token> {
 }
 
 // word           = (alphanumeric | _ | - | .)+    except for reserved keywords
-pub fn word_not_keyword<'a>(input: Span<'a>) -> IResult<Token<'a>> {
+pub fn word_not_keyword<'a>(input: Span<'a>) -> IResult<'a, Token<'a>> {
     let (input, word): (_, Token<'a>) =
         take_while1(is_value_component)(input).map(|(s, t)| (s, t.into()))?;
     if is_keyword(word.value()) {

crates/index-scheduler/Cargo.toml

@@ -47,7 +47,7 @@ uuid = { version = "1.11.0", features = ["serde", "v4"] }
 
 [dev-dependencies]
 big_s = "1.0.2"
-crossbeam-channel = "0.5.14"
+crossbeam-channel = "0.5.15"
 # fixed version due to format breakages in v1.40
 insta = { version = "=1.39.0", features = ["json", "redactions"] }
 maplit = "1.0.2"

crates/index-scheduler/src/insta_snapshot.rs

@@ -341,7 +341,16 @@ pub fn snapshot_canceled_by(rtxn: &RoTxn, db: Database<BEU32, RoaringBitmapCodec
 
 pub fn snapshot_batch(batch: &Batch) -> String {
     let mut snap = String::new();
-    let Batch { uid, details, stats, started_at, finished_at, progress: _, enqueued_at } = batch;
+    let Batch {
+        uid,
+        details,
+        stats,
+        started_at,
+        finished_at,
+        progress: _,
+        enqueued_at,
+        stop_reason,
+    } = batch;
     let stats = BatchStats {
         progress_trace: Default::default(),
         internal_database_sizes: Default::default(),
@@ -359,6 +368,7 @@ pub fn snapshot_batch(batch: &Batch) -> String {
     snap.push_str(&format!("uid: {uid}, "));
     snap.push_str(&format!("details: {}, ", serde_json::to_string(details).unwrap()));
     snap.push_str(&format!("stats: {}, ", serde_json::to_string(&stats).unwrap()));
+    snap.push_str(&format!("stop reason: {}, ", serde_json::to_string(&stop_reason).unwrap()));
     snap.push('}');
     snap
 }

crates/index-scheduler/src/lib.rs

@@ -74,6 +74,8 @@ use crate::utils::clamp_to_page_size;
 
 pub(crate) type BEI128 = I128<BE>;
 
+const TASK_SCHEDULER_SIZE_THRESHOLD_PERCENT_INT: u64 = 40;
+
 #[derive(Debug)]
 pub struct IndexSchedulerOptions {
     /// The path to the version file of Meilisearch.
@@ -425,6 +427,17 @@ impl IndexScheduler {
         Ok(self.env.non_free_pages_size()?)
     }
 
+    /// Return the maximum possible database size
+    pub fn max_size(&self) -> Result<u64> {
+        Ok(self.env.info().map_size as u64)
+    }
+
+    /// Return the max size of task allowed until the task queue stop receiving.
+    pub fn remaining_size_until_task_queue_stop(&self) -> Result<u64> {
+        Ok((self.env.info().map_size as u64 * TASK_SCHEDULER_SIZE_THRESHOLD_PERCENT_INT / 100)
+            .saturating_sub(self.used_size()?))
+    }
+
     /// Return the index corresponding to the name.
     ///
     /// * If the index wasn't opened before, the index will be opened.
@@ -627,7 +640,8 @@ impl IndexScheduler {
     ) -> Result<Task> {
         // if the task doesn't delete or cancel anything and 40% of the task queue is full, we must refuse to enqueue the incoming task
         if !matches!(&kind, KindWithContent::TaskDeletion { tasks, .. } | KindWithContent::TaskCancelation { tasks, .. } if !tasks.is_empty())
-            && (self.env.non_free_pages_size()? * 100) / self.env.info().map_size as u64 > 40
+            && (self.env.non_free_pages_size()? * 100) / self.env.info().map_size as u64
+                > TASK_SCHEDULER_SIZE_THRESHOLD_PERCENT_INT
         {
             return Err(Error::NoSpaceLeftInTaskQueue);
         }
@@ -696,7 +710,7 @@ impl IndexScheduler {
                 written: usize,
             }
 
-            impl<'a, 'b> Read for TaskReader<'a, 'b> {
+            impl Read for TaskReader<'_, '_> {
                 fn read(&mut self, mut buf: &mut [u8]) -> std::io::Result<usize> {
                     if self.buffer.is_empty() {
                         match self.tasks.next() {

crates/index-scheduler/src/queue/batches.rs

@@ -182,6 +182,7 @@ impl BatchQueue {
                 started_at: batch.started_at,
                 finished_at: batch.finished_at,
                 enqueued_at: batch.enqueued_at,
+                stop_reason: batch.reason.to_string(),
             },
         )?;
 

crates/index-scheduler/src/queue/batches_test.rs

@@ -106,7 +106,7 @@ fn query_batches_simple() {
     batches[0].enqueued_at = None;
     // Insta cannot snapshot our batches because the batch stats contains an enum as key: https://github.com/mitsuhiko/insta/issues/689
     let batch = serde_json::to_string_pretty(&batches[0]).unwrap();
-    snapshot!(batch, @r#"
+    snapshot!(batch, @r###"
     {
       "uid": 0,
       "details": {
@@ -126,9 +126,10 @@ fn query_batches_simple() {
       },
       "startedAt": "1970-01-01T00:00:00Z",
       "finishedAt": null,
-      "enqueuedAt": null
+      "enqueuedAt": null,
+      "stopReason": "task with id 0 of type `indexCreation` cannot be batched"
     }
-    "#);
+    "###);
 
     let query = Query { statuses: Some(vec![Status::Enqueued]), ..Default::default() };
     let (batches, _) = index_scheduler

crates/index-scheduler/src/queue/snapshots/batches_test.rs/query_batches_canceled_by/start.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/queue/batches_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -49,8 +48,8 @@ catto: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [1,2,3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
-1 {uid: 1, details: {"primaryKey":"sheep","matchedTasks":3,"canceledTasks":2,"originalFilter":"test_query","swaps":[{"indexes":["catto","doggo"]}]}, stats: {"totalNbTasks":3,"status":{"succeeded":1,"canceled":2},"types":{"indexCreation":1,"indexSwap":1,"taskCancelation":1},"indexUids":{"doggo":1}}, }
+0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"sheep","matchedTasks":3,"canceledTasks":2,"originalFilter":"test_query","swaps":[{"indexes":["catto","doggo"]}]}, stats: {"totalNbTasks":3,"status":{"succeeded":1,"canceled":2},"types":{"indexCreation":1,"indexSwap":1,"taskCancelation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 3 of type `taskCancelation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/snapshots/batches_test.rs/query_batches_from_and_limit/processed_all_tasks.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/queue/batches_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -48,9 +47,9 @@ whalo: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"bone"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, }
-1 {uid: 1, details: {"primaryKey":"plankton"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, }
-2 {uid: 2, details: {"primaryKey":"his_own_vomit"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"primaryKey":"bone"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"plankton"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"his_own_vomit"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/snapshots/batches_test.rs/query_batches_simple/after-advancing-a-bit.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/queue/batches_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(1):
 [1,]
-{uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, }
+{uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, batch_uid: 0, status: succeeded, details: { primary_key: Some("mouse") }, kind: IndexCreation { index_uid: "catto", primary_key: Some("mouse") }}
@@ -43,7 +42,7 @@ catto: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/snapshots/batches_test.rs/query_batches_simple/end.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/queue/batches_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -48,9 +47,9 @@ doggo: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
-1 {uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, }
-2 {uid: 2, details: {"primaryKey":"fish"}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, }
+0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"fish"}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/snapshots/batches_test.rs/query_batches_special_rules/after-processing-everything.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/queue/batches_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -53,10 +52,10 @@ doggo: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
-1 {uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, }
-2 {uid: 2, details: {"swaps":[{"indexes":["catto","doggo"]}]}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexSwap":1},"indexUids":{}}, }
-3 {uid: 3, details: {"swaps":[{"indexes":["catto","whalo"]}]}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexSwap":1},"indexUids":{}}, }
+0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"swaps":[{"indexes":["catto","doggo"]}]}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 2 of type `indexSwap` cannot be batched", }
+3 {uid: 3, details: {"swaps":[{"indexes":["catto","whalo"]}]}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 3 of type `indexSwap` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/snapshots/tasks_test.rs/query_tasks_canceled_by/start.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/queue/tasks_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -49,8 +48,8 @@ catto: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [1,2,3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
-1 {uid: 1, details: {"primaryKey":"sheep","matchedTasks":3,"canceledTasks":2,"originalFilter":"test_query","swaps":[{"indexes":["catto","doggo"]}]}, stats: {"totalNbTasks":3,"status":{"succeeded":1,"canceled":2},"types":{"indexCreation":1,"indexSwap":1,"taskCancelation":1},"indexUids":{"doggo":1}}, }
+0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"sheep","matchedTasks":3,"canceledTasks":2,"originalFilter":"test_query","swaps":[{"indexes":["catto","doggo"]}]}, stats: {"totalNbTasks":3,"status":{"succeeded":1,"canceled":2},"types":{"indexCreation":1,"indexSwap":1,"taskCancelation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 3 of type `taskCancelation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/snapshots/tasks_test.rs/query_tasks_from_and_limit/processed_all_tasks.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/queue/tasks_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -48,9 +47,9 @@ whalo: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"bone"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, }
-1 {uid: 1, details: {"primaryKey":"plankton"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, }
-2 {uid: 2, details: {"primaryKey":"his_own_vomit"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"primaryKey":"bone"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"plankton"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"his_own_vomit"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/snapshots/tasks_test.rs/query_tasks_simple/end.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/queue/tasks_test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -48,9 +47,9 @@ doggo: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, }
-1 {uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, }
-2 {uid: 2, details: {"primaryKey":"fish"}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, }
+0 {uid: 0, details: {"primaryKey":"mouse"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"catto":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"sheep"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggo":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"fish"}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexCreation":1},"indexUids":{"whalo":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/queue/tasks.rs

@@ -315,7 +315,7 @@ impl Queue {
         if let Some(batch_uids) = batch_uids {
             let mut batch_tasks = RoaringBitmap::new();
             for batch_uid in batch_uids {
-                if processing_batch.as_ref().map_or(false, |batch| batch.uid == *batch_uid) {
+                if processing_batch.as_ref().is_some_and(|batch| batch.uid == *batch_uid) {
                     batch_tasks |= &**processing_tasks;
                 } else {
                     batch_tasks |= self.tasks_in_batch(rtxn, *batch_uid)?;

crates/index-scheduler/src/scheduler/autobatcher.rs

@@ -5,9 +5,10 @@ tasks affecting a single index into a [batch](crate::batch::Batch).
 The main function of the autobatcher is [`next_autobatch`].
 */
 
-use meilisearch_types::tasks::TaskId;
 use std::ops::ControlFlow::{self, Break, Continue};
 
+use meilisearch_types::tasks::{BatchStopReason, PrimaryKeyMismatchReason, TaskId};
+
 use crate::KindWithContent;
 
 /// Succinctly describes a task's [`Kind`](meilisearch_types::tasks::Kind)
@@ -145,16 +146,42 @@ impl BatchKind {
     // TODO use an AutoBatchKind as input
     pub fn new(
         task_id: TaskId,
-        kind: KindWithContent,
+        kind_with_content: KindWithContent,
         primary_key: Option<&str>,
-    ) -> (ControlFlow<BatchKind, BatchKind>, bool) {
+    ) -> (ControlFlow<(BatchKind, BatchStopReason), BatchKind>, bool) {
         use AutobatchKind as K;
 
-        match AutobatchKind::from(kind) {
-            K::IndexCreation => (Break(BatchKind::IndexCreation { id: task_id }), true),
-            K::IndexDeletion => (Break(BatchKind::IndexDeletion { ids: vec![task_id] }), false),
-            K::IndexUpdate => (Break(BatchKind::IndexUpdate { id: task_id }), false),
-            K::IndexSwap => (Break(BatchKind::IndexSwap { id: task_id }), false),
+        let kind = kind_with_content.as_kind();
+
+        match AutobatchKind::from(kind_with_content) {
+            K::IndexCreation => (
+                Break((
+                    BatchKind::IndexCreation { id: task_id },
+                    BatchStopReason::TaskCannotBeBatched { kind, id: task_id },
+                )),
+                true,
+            ),
+            K::IndexDeletion => (
+                Break((
+                    BatchKind::IndexDeletion { ids: vec![task_id] },
+                    BatchStopReason::IndexDeletion { id: task_id },
+                )),
+                false,
+            ),
+            K::IndexUpdate => (
+                Break((
+                    BatchKind::IndexUpdate { id: task_id },
+                    BatchStopReason::TaskCannotBeBatched { kind, id: task_id },
+                )),
+                false,
+            ),
+            K::IndexSwap => (
+                Break((
+                    BatchKind::IndexSwap { id: task_id },
+                    BatchStopReason::TaskCannotBeBatched { kind, id: task_id },
+                )),
+                false,
+            ),
             K::DocumentClear => (Continue(BatchKind::DocumentClear { ids: vec![task_id] }), false),
             K::DocumentImport { allow_index_creation, primary_key: pk }
                 if primary_key.is_none() || pk.is_none() || primary_key == pk.as_deref() =>
@@ -169,15 +196,28 @@ impl BatchKind {
                 )
             }
             // if the primary key set in the task was different than ours we should stop and make this batch fail asap.
-            K::DocumentImport { allow_index_creation, primary_key } => (
-                Break(BatchKind::DocumentOperation {
-                    allow_index_creation,
-                    primary_key,
-                    operation_ids: vec![task_id],
-                }),
+            K::DocumentImport { allow_index_creation, primary_key: pk } => (
+                Break((
+                    BatchKind::DocumentOperation {
+                        allow_index_creation,
+                        primary_key: pk.clone(),
+                        operation_ids: vec![task_id],
+                    },
+                    BatchStopReason::PrimaryKeyIndexMismatch {
+                        id: task_id,
+                        in_index: primary_key.unwrap().to_owned(),
+                        in_task: pk.unwrap(),
+                    },
+                )),
                 allow_index_creation,
             ),
-            K::DocumentEdition => (Break(BatchKind::DocumentEdition { id: task_id }), false),
+            K::DocumentEdition => (
+                Break((
+                    BatchKind::DocumentEdition { id: task_id },
+                    BatchStopReason::TaskCannotBeBatched { kind, id: task_id },
+                )),
+                false,
+            ),
             K::DocumentDeletion { by_filter: includes_by_filter } => (
                 Continue(BatchKind::DocumentDeletion {
                     deletion_ids: vec![task_id],
@@ -197,43 +237,60 @@ impl BatchKind {
     /// To ease the writing of the code. `true` can be returned when you don't need to create an index
     /// but false can't be returned if you needs to create an index.
     #[rustfmt::skip]
-    fn accumulate(self, id: TaskId, kind: AutobatchKind, index_already_exists: bool, primary_key: Option<&str>) -> ControlFlow<BatchKind, BatchKind> {
+    fn accumulate(self, id: TaskId, kind_with_content: KindWithContent, index_already_exists: bool, primary_key: Option<&str>) -> ControlFlow<(BatchKind, BatchStopReason), BatchKind> {
         use AutobatchKind as K;
 
-        match (self, kind) {
+        let kind = kind_with_content.as_kind();
+        let autobatch_kind = AutobatchKind::from(kind_with_content);
+
+        let pk: Option<String> = match (self.primary_key(), autobatch_kind.primary_key(), primary_key) {
+            // 1. If incoming task don't interact with primary key -> we can continue
+            (batch_pk, None | Some(None), _) => {
+                batch_pk.flatten().map(ToOwned::to_owned)
+            },
+            // 2.1 If we already have a primary-key ->
+            // 2.1.1 If the task we're trying to accumulate have a pk it must be equal to our primary key
+            (_batch_pk, Some(Some(task_pk)), Some(index_pk)) => if task_pk == index_pk {
+                Some(task_pk.to_owned())
+            } else {
+                return Break((self, BatchStopReason::PrimaryKeyMismatch {
+                    id,
+                    reason: PrimaryKeyMismatchReason::TaskPrimaryKeyDifferFromIndexPrimaryKey {
+                        task_pk: task_pk.to_owned(),
+                        index_pk: index_pk.to_owned(),
+                    },
+                }))
+            },
+            // 2.2 If we don't have a primary-key ->
+            // 2.2.2 If the batch is set to Some(None), the task should be too
+            (Some(None), Some(Some(task_pk)), None) => return Break((self, BatchStopReason::PrimaryKeyMismatch {
+                id,
+                reason: PrimaryKeyMismatchReason::CannotInterfereWithPrimaryKeyGuessing {
+                    task_pk: task_pk.to_owned(),
+                },
+            })),
+            (Some(Some(batch_pk)), Some(Some(task_pk)), None) => if task_pk == batch_pk {
+                Some(task_pk.to_owned())
+            } else {
+                let batch_pk = batch_pk.to_owned();
+                let task_pk = task_pk.to_owned();
+                return Break((self, BatchStopReason::PrimaryKeyMismatch {
+                    id,
+                    reason: PrimaryKeyMismatchReason::TaskPrimaryKeyDifferFromCurrentBatchPrimaryKey {
+                        batch_pk,
+                        task_pk
+                    },
+                }))
+            },
+            (None, Some(Some(task_pk)), None) => Some(task_pk.to_owned())
+        };
+
+        match (self, autobatch_kind) {
             // We don't batch any of these operations
-            (this, K::IndexCreation | K::IndexUpdate | K::IndexSwap | K::DocumentEdition) => Break(this),
+            (this, K::IndexCreation | K::IndexUpdate | K::IndexSwap | K::DocumentEdition) => Break((this, BatchStopReason::TaskCannotBeBatched { kind, id })),
             // We must not batch tasks that don't have the same index creation rights if the index doesn't already exists.
             (this, kind) if !index_already_exists && this.allow_index_creation() == Some(false) && kind.allow_index_creation() == Some(true) => {
-                Break(this)
-            },
-            // NOTE: We need to negate the whole condition since we're checking if we need to break instead of continue.
-            //       I wrote it this way because it's easier to understand than the other way around.
-            (this, kind) if !(
-                // 1. If both task don't interact with primary key -> we can continue
-                (this.primary_key().is_none() && kind.primary_key().is_none()) ||
-                // 2. Else ->
-                (
-                    // 2.1 If we already have a primary-key ->
-                    (
-                        primary_key.is_some() &&
-                        // 2.1.1 If the task we're trying to accumulate have a pk it must be equal to our primary key
-                        // 2.1.2 If the task don't have a primary-key -> we can continue
-                        kind.primary_key().map_or(true, |pk| pk == primary_key)
-                    ) ||
-                    // 2.2 If we don't have a primary-key ->
-                    (
-                        // 2.2.1 If both the batch and the task have a primary key they should be equal
-                        // 2.2.2 If the batch is set to Some(None), the task should be too
-                        // 2.2.3 If the batch is set to None -> we can continue
-                        this.primary_key().zip(kind.primary_key()).map_or(true, |(this, kind)| this == kind)
-                    )
-                )
-
-                ) // closing the negation
-
-            => {
-                Break(this)
+                Break((this, BatchStopReason::IndexCreationMismatch { id }))
             },
             // The index deletion can batch with everything but must stop after
             (
@@ -244,7 +301,7 @@ impl BatchKind {
                 K::IndexDeletion,
             ) => {
                 ids.push(id);
-                Break(BatchKind::IndexDeletion { ids })
+                Break((BatchKind::IndexDeletion { ids }, BatchStopReason::IndexDeletion { id }))
             }
             (
                 BatchKind::ClearAndSettings { settings_ids: mut ids, allow_index_creation: _, mut other },
@@ -252,7 +309,7 @@ impl BatchKind {
             ) => {
                 ids.push(id);
                 ids.append(&mut other);
-                Break(BatchKind::IndexDeletion { ids })
+                Break((BatchKind::IndexDeletion { ids }, BatchStopReason::IndexDeletion { id }))
             }
 
             (
@@ -265,7 +322,7 @@ impl BatchKind {
             (
                 this @ BatchKind::DocumentClear { .. },
                 K::DocumentImport { .. } | K::Settings { .. },
-            ) => Break(this),
+            ) => Break((this, BatchStopReason::DocumentOperationWithSettings { id })),
             (
                 BatchKind::DocumentOperation { allow_index_creation: _, primary_key: _, mut operation_ids },
                 K::DocumentClear,
@@ -277,7 +334,7 @@ impl BatchKind {
             // we can autobatch different kind of document operations and mix replacements with updates
             (
                 BatchKind::DocumentOperation { allow_index_creation, primary_key: _, mut operation_ids },
-                K::DocumentImport { primary_key: pk, .. },
+                K::DocumentImport { primary_key: _, .. },
             ) => {
                 operation_ids.push(id);
                 Continue(BatchKind::DocumentOperation {
@@ -287,15 +344,15 @@ impl BatchKind {
                 })
             }
             (
-                BatchKind::DocumentOperation { allow_index_creation, primary_key, mut operation_ids },
+                BatchKind::DocumentOperation { allow_index_creation, primary_key: _, mut operation_ids },
                 K::DocumentDeletion { by_filter: false },
             ) => {
                 operation_ids.push(id);
 
                 Continue(BatchKind::DocumentOperation {
                     allow_index_creation,
-                    primary_key,
                     operation_ids,
+                    primary_key: pk,
                 })
             }
             // We can't batch a document operation with a delete by filter
@@ -303,12 +360,12 @@ impl BatchKind {
                 this @ BatchKind::DocumentOperation { .. },
                 K::DocumentDeletion { by_filter: true },
             ) => {
-                Break(this)
+                Break((this, BatchStopReason::DocumentOperationWithDeletionByFilter { id }))
             }
             (
                 this @ BatchKind::DocumentOperation { .. },
                 K::Settings { .. },
-            ) => Break(this),
+            ) => Break((this, BatchStopReason::DocumentOperationWithSettings { id })),
 
             (BatchKind::DocumentDeletion { mut deletion_ids, includes_by_filter: _ }, K::DocumentClear) => {
                 deletion_ids.push(id);
@@ -318,7 +375,7 @@ impl BatchKind {
             (
                 this @ BatchKind::DocumentDeletion { deletion_ids: _, includes_by_filter: true },
                 K::DocumentImport { .. }
-            ) => Break(this),
+            ) => Break((this, BatchStopReason::DeletionByFilterWithDocumentOperation { id })),
             // we can autobatch the deletion and import if the index already exists
             (
                 BatchKind::DocumentDeletion { mut deletion_ids, includes_by_filter: false },
@@ -345,18 +402,18 @@ impl BatchKind {
                     operation_ids: deletion_ids,
                 })
             }
-            // we can't autobatch a deletion and an import if the index does not exists but would be created by an addition
+            // we can't autobatch a deletion and an import if the index does not exist but would be created by an addition
             (
                 this @ BatchKind::DocumentDeletion { .. },
                 K::DocumentImport { .. }
             ) => {
-                Break(this)
+                Break((this, BatchStopReason::IndexCreationMismatch { id }))
             }
             (BatchKind::DocumentDeletion { mut deletion_ids, includes_by_filter }, K::DocumentDeletion { by_filter }) => {
                 deletion_ids.push(id);
                 Continue(BatchKind::DocumentDeletion { deletion_ids, includes_by_filter: includes_by_filter | by_filter })
             }
-            (this @ BatchKind::DocumentDeletion { .. }, K::Settings { .. }) => Break(this),
+            (this @ BatchKind::DocumentDeletion { .. }, K::Settings { .. }) => Break((this, BatchStopReason::DocumentOperationWithSettings { id })),
 
             (
                 BatchKind::Settings { settings_ids, allow_index_creation },
@@ -369,7 +426,7 @@ impl BatchKind {
             (
                 this @ BatchKind::Settings { .. },
                 K::DocumentImport { .. } | K::DocumentDeletion { .. },
-            ) => Break(this),
+            ) => Break((this, BatchStopReason::SettingsWithDocumentOperation { id })),
             (
                 BatchKind::Settings { mut settings_ids, allow_index_creation },
                 K::Settings { .. },
@@ -392,7 +449,7 @@ impl BatchKind {
                     allow_index_creation,
                 })
             }
-            (this @ BatchKind::ClearAndSettings { .. }, K::DocumentImport { .. }) => Break(this),
+            (this @ BatchKind::ClearAndSettings { .. }, K::DocumentImport { .. }) => Break((this, BatchStopReason::SettingsWithDocumentOperation { id })),
             (
                 BatchKind::ClearAndSettings {
                     mut other,
@@ -448,7 +505,7 @@ pub fn autobatch(
     enqueued: Vec<(TaskId, KindWithContent)>,
     index_already_exists: bool,
     primary_key: Option<&str>,
-) -> Option<(BatchKind, bool)> {
+) -> Option<(BatchKind, bool, Option<BatchStopReason>)> {
     let mut enqueued = enqueued.into_iter();
     let (id, kind) = enqueued.next()?;
 
@@ -457,18 +514,22 @@ pub fn autobatch(
 
     let (mut acc, must_create_index) = match BatchKind::new(id, kind, primary_key) {
         (Continue(acc), create) => (acc, create),
-        (Break(acc), create) => return Some((acc, create)),
+        (Break((acc, batch_stop_reason)), create) => {
+            return Some((acc, create, Some(batch_stop_reason)))
+        }
     };
 
     // if an index has been created in the previous step we can consider it as existing.
     index_exist |= must_create_index;
 
-    for (id, kind) in enqueued {
-        acc = match acc.accumulate(id, kind.into(), index_exist, primary_key) {
+    for (id, kind_with_content) in enqueued {
+        acc = match acc.accumulate(id, kind_with_content, index_exist, primary_key) {
             Continue(acc) => acc,
-            Break(acc) => return Some((acc, must_create_index)),
+            Break((acc, batch_stop_reason)) => {
+                return Some((acc, must_create_index, Some(batch_stop_reason)))
+            }
         };
     }
 
-    Some((acc, must_create_index))
+    Some((acc, must_create_index, None))
 }

crates/index-scheduler/src/scheduler/autobatcher_test.rs

@@ -1,7 +1,7 @@
 use meilisearch_types::milli::update::IndexDocumentsMethod::{
     self, ReplaceDocuments, UpdateDocuments,
 };
-use meilisearch_types::tasks::{IndexSwap, KindWithContent};
+use meilisearch_types::tasks::{BatchStopReason, IndexSwap, KindWithContent};
 use uuid::Uuid;
 
 use self::autobatcher::{autobatch, BatchKind};
@@ -20,7 +20,7 @@ fn autobatch_from(
     index_already_exists: bool,
     primary_key: Option<&str>,
     input: impl IntoIterator<Item = KindWithContent>,
-) -> Option<(BatchKind, bool)> {
+) -> Option<(BatchKind, bool, Option<BatchStopReason>)> {
     autobatch(
         input.into_iter().enumerate().map(|(id, kind)| (id as TaskId, kind)).collect(),
         index_already_exists,
@@ -92,304 +92,304 @@ fn idx_swap() -> KindWithContent {
 fn autobatch_simple_operation_together() {
     // we can autobatch one or multiple `ReplaceDocuments` together.
     // if the index exists.
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp( ReplaceDocuments, true , None), doc_imp(ReplaceDocuments, true , None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_imp( ReplaceDocuments, false , None), doc_imp(ReplaceDocuments, false , None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1, 2] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp( ReplaceDocuments, true , None), doc_imp(ReplaceDocuments, true , None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_imp( ReplaceDocuments, false , None), doc_imp(ReplaceDocuments, false , None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1, 2] }, false, None))");
 
     // if it doesn't exists.
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), doc_imp( ReplaceDocuments, true , None), doc_imp(ReplaceDocuments, true , None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), doc_imp( ReplaceDocuments, true , None), doc_imp(ReplaceDocuments, true , None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), doc_imp( ReplaceDocuments, true , None), doc_imp(ReplaceDocuments, true , None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), doc_imp( ReplaceDocuments, true , None), doc_imp(ReplaceDocuments, true , None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(IndexCreationMismatch { id: 1 })))");
 
     // we can autobatch one or multiple `UpdateDocuments` together.
     // if the index exists.
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1, 2] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1, 2] }, false, None))");
 
     // if it doesn't exists.
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1, 2] }, false))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1, 2] }, false, None))");
 
     // we can autobatch one or multiple DocumentDeletion together
-    debug_snapshot!(autobatch_from(true, None, [doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_del(), doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_del(), doc_del(), doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: false }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_del(), doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: false }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_del(), doc_del(), doc_del()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: false }, false, None))");
 
     // we can autobatch one or multiple DocumentDeletionByFilter together
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_del_fil(), doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_del_fil(), doc_del_fil(), doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: true }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_del_fil(), doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: true }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_del_fil(), doc_del_fil(), doc_del_fil()]), @"Some((DocumentDeletion { deletion_ids: [0, 1, 2], includes_by_filter: true }, false, None))");
 
     // we can autobatch one or multiple Settings together
-    debug_snapshot!(autobatch_from(true, None, [settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [settings(true), settings(true), settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [settings(false), settings(false), settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0, 1, 2] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [settings(true), settings(true), settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0, 1, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [settings(false), settings(false), settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0, 1, 2] }, false, None))");
 
-    debug_snapshot!(autobatch_from(false,None,  [settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [settings(true), settings(true), settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [settings(false), settings(false), settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0, 1, 2] }, false))");
+    debug_snapshot!(autobatch_from(false,None,  [settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(false,None,  [settings(true), settings(true), settings(true)]), @"Some((Settings { allow_index_creation: true, settings_ids: [0, 1, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(false,None,  [settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0] }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [settings(false), settings(false), settings(false)]), @"Some((Settings { allow_index_creation: false, settings_ids: [0, 1, 2] }, false, None))");
 
     // We can autobatch document addition with document deletion
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, None), doc_del()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true, None))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, true, None))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
     // And the other way around
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, true, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, true, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, true, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, true, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), doc_imp(UpdateDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, false, Some("catto"))]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0, 1] }, false, None))"###);
 
     // But we can't autobatch document addition with document deletion by filter
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false))"###);
-    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, true, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("catto"), operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(ReplaceDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
+    debug_snapshot!(autobatch_from(false, None, [doc_imp(UpdateDocuments, false, Some("catto")), doc_del_fil()]), @r###"Some((DocumentOperation { allow_index_creation: false, primary_key: Some("catto"), operation_ids: [0] }, false, Some(DocumentOperationWithDeletionByFilter { id: 1 })))"###);
     // And the other way around
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(ReplaceDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del_fil(), doc_imp(UpdateDocuments, false, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
 }
 
 #[test]
 fn simple_different_document_operations_autobatch_together() {
     // addition and updates with deletion by filter can't batch together
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_del_fil()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithDeletionByFilter { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(DeletionByFilterWithDocumentOperation { id: 1 })))");
 
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_create()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_create()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(TaskCannotBeBatched { kind: IndexCreation, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(TaskCannotBeBatched { kind: IndexCreation, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_create()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, Some(TaskCannotBeBatched { kind: IndexCreation, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_create()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(TaskCannotBeBatched { kind: IndexCreation, id: 1 })))");
 
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_update()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_update()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(TaskCannotBeBatched { kind: IndexUpdate, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(TaskCannotBeBatched { kind: IndexUpdate, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_update()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, Some(TaskCannotBeBatched { kind: IndexUpdate, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_update()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(TaskCannotBeBatched { kind: IndexUpdate, id: 1 })))");
 
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_swap()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_swap()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(TaskCannotBeBatched { kind: IndexSwap, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(TaskCannotBeBatched { kind: IndexSwap, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_swap()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, Some(TaskCannotBeBatched { kind: IndexSwap, id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_swap()]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: true }, false, Some(TaskCannotBeBatched { kind: IndexSwap, id: 1 })))");
 }
 
 #[test]
 fn document_addition_doesnt_batch_with_settings() {
     // simple case
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
 
     // multiple settings and doc addition
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), settings(true), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), settings(true), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), settings(true), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, Some(DocumentOperationWithSettings { id: 2 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), settings(true), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, Some(DocumentOperationWithSettings { id: 2 })))");
 
     // addition and setting unordered
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_imp(UpdateDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_imp(UpdateDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
 
     // Doesn't batch with other forbidden operations
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_del()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), idx_create()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), idx_update()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), idx_swap()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
 }
 
 #[test]
 fn clear_and_additions() {
     // these two doesn't need to batch
-    debug_snapshot!(autobatch_from(true, None, [doc_clr(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentClear { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_clr(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentClear { ids: [0] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_clr(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentClear { ids: [0] }, false, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_clr(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentClear { ids: [0] }, false, Some(DocumentOperationWithSettings { id: 1 })))");
 
     // Basic use case
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2] }, true, None))");
 
     // This batch kind doesn't mix with other document addition
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), doc_clr(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentClear { ids: [0, 1, 2] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_clr(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentClear { ids: [0, 1, 2] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), doc_clr(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentClear { ids: [0, 1, 2] }, true, Some(DocumentOperationWithSettings { id: 3 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_clr(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentClear { ids: [0, 1, 2] }, true, Some(DocumentOperationWithSettings { id: 3 })))");
 
     // But you can batch multiple clear together
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), doc_clr(), doc_clr(), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2, 3, 4] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_clr(), doc_clr(), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2, 3, 4] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None), doc_clr(), doc_clr(), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2, 3, 4] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), doc_imp(UpdateDocuments, true, None), doc_clr(), doc_clr(), doc_clr()]), @"Some((DocumentClear { ids: [0, 1, 2, 3, 4] }, true, None))");
 }
 
 #[test]
 fn clear_and_additions_and_settings() {
     // A clear don't need to autobatch the settings that happens AFTER there is no documents
-    debug_snapshot!(autobatch_from(true, None, [doc_clr(), settings(true)]), @"Some((DocumentClear { ids: [0] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_clr(), settings(true)]), @"Some((DocumentClear { ids: [0] }, false, Some(DocumentOperationWithSettings { id: 1 })))");
 
-    debug_snapshot!(autobatch_from(true, None, [settings(true), doc_clr(), settings(true)]), @"Some((ClearAndSettings { other: [1], allow_index_creation: true, settings_ids: [0, 2] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_clr()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_clr()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
+    debug_snapshot!(autobatch_from(true, None, [settings(true), doc_clr(), settings(true)]), @"Some((ClearAndSettings { other: [1], allow_index_creation: true, settings_ids: [0, 2] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true), doc_clr()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), settings(true), doc_clr()]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
 }
 
 #[test]
 fn anything_and_index_deletion() {
     // The `IndexDeletion` doesn't batch with anything that happens AFTER.
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_del()]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_del_fil()]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_clr()]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), settings(true)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [idx_del(), settings(false)]), @"Some((IndexDeletion { ids: [0] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_del()]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_del_fil()]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), doc_clr()]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), settings(true)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(true, None, [idx_del(), settings(false)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
 
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_del()]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_del_fil()]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_clr()]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), settings(true)]), @"Some((IndexDeletion { ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [idx_del(), settings(false)]), @"Some((IndexDeletion { ids: [0] }, false))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(ReplaceDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_imp(UpdateDocuments, false, None)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_del()]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_del_fil()]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), doc_clr()]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), settings(true)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
+    debug_snapshot!(autobatch_from(false,None,  [idx_del(), settings(false)]), @"Some((IndexDeletion { ids: [0] }, false, Some(IndexDeletion { id: 0 })))");
 
     // The index deletion can accept almost any type of `BatchKind` and transform it to an `IndexDeletion`.
     // First, the basic cases
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_clr(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [settings(true), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [settings(false), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(UpdateDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_del_fil(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_clr(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [settings(true), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [settings(false), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
 
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_del(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_del_fil(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_clr(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [settings(true), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [settings(false), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, true, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(UpdateDocuments, false, None), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_del(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_del_fil(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_clr(), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [settings(true), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, true, Some(IndexDeletion { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [settings(false), idx_del()]), @"Some((IndexDeletion { ids: [0, 1] }, false, Some(IndexDeletion { id: 1 })))");
 }
 
 #[test]
 fn allowed_and_disallowed_index_creation() {
     // `DocumentImport` can't be mixed with those disallowed to do so except if the index already exists.
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, false, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(DocumentOperationWithSettings { id: 1 })))");
 
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(IndexCreationMismatch { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), doc_imp(ReplaceDocuments, false, None)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0, 1] }, false, None))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, true, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(DocumentOperationWithSettings { id: 1 })))");
+    debug_snapshot!(autobatch_from(false,None,  [doc_imp(ReplaceDocuments, false, None), settings(true)]), @"Some((DocumentOperation { allow_index_creation: false, primary_key: None, operation_ids: [0] }, false, Some(IndexCreationMismatch { id: 1 })))");
 
     // batch deletion and addition
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
-    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, Some(IndexCreationMismatch { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, true, Some("catto"))]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, Some(IndexCreationMismatch { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, Some(IndexCreationMismatch { id: 1 })))");
+    debug_snapshot!(autobatch_from(false, None, [doc_del(), doc_imp(UpdateDocuments, true, None)]), @"Some((DocumentDeletion { deletion_ids: [0], includes_by_filter: false }, false, Some(IndexCreationMismatch { id: 1 })))");
 }
 
 #[test]
 fn autobatch_primary_key() {
     // ==> If I have a pk
     // With a single update
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, Some(PrimaryKeyIndexMismatch { id: 0, in_index: "id", in_task: "other" })))"###);
 
     // With a multiple updates
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("other"))]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1, 2] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(PrimaryKeyMismatch { id: 1, reason: TaskPrimaryKeyDifferFromIndexPrimaryKey { task_pk: "other", index_pk: "id" } })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(PrimaryKeyMismatch { id: 1, reason: TaskPrimaryKeyDifferFromIndexPrimaryKey { task_pk: "other", index_pk: "id" } })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(PrimaryKeyMismatch { id: 1, reason: TaskPrimaryKeyDifferFromIndexPrimaryKey { task_pk: "other", index_pk: "id" } })))"###);
 
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1, 2] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true, Some(PrimaryKeyMismatch { id: 1, reason: TaskPrimaryKeyDifferFromIndexPrimaryKey { task_pk: "other", index_pk: "id" } })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true, Some(PrimaryKeyMismatch { id: 1, reason: TaskPrimaryKeyDifferFromIndexPrimaryKey { task_pk: "other", index_pk: "id" } })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true, Some(PrimaryKeyMismatch { id: 1, reason: TaskPrimaryKeyDifferFromIndexPrimaryKey { task_pk: "other", index_pk: "id" } })))"###);
 
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, Some(PrimaryKeyIndexMismatch { id: 0, in_index: "id", in_task: "other" })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, Some(PrimaryKeyIndexMismatch { id: 0, in_index: "id", in_task: "other" })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, Some(PrimaryKeyIndexMismatch { id: 0, in_index: "id", in_task: "other" })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, Some(PrimaryKeyIndexMismatch { id: 0, in_index: "id", in_task: "other" })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, Some(PrimaryKeyIndexMismatch { id: 0, in_index: "id", in_task: "other" })))"###);
+    debug_snapshot!(autobatch_from(true, Some("id"), [doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("other")), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, Some(PrimaryKeyIndexMismatch { id: 0, in_index: "id", in_task: "other" })))"###);
 
     // ==> If I don't have a pk
     // With a single update
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true))"###);
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true, None))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("other"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("other"), operation_ids: [0] }, true, None))"###);
 
     // With a multiple updates
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("id"))]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true))");
-    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0] }, true))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, None)]), @"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0, 1] }, true, None))");
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, None), doc_imp(ReplaceDocuments, true, Some("id"))]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: None, operation_ids: [0] }, true, Some(PrimaryKeyMismatch { id: 1, reason: CannotInterfereWithPrimaryKeyGuessing { task_pk: "id" } })))"###);
+    debug_snapshot!(autobatch_from(true, None, [doc_imp(ReplaceDocuments, true, Some("id")), doc_imp(ReplaceDocuments, true, None)]), @r###"Some((DocumentOperation { allow_index_creation: true, primary_key: Some("id"), operation_ids: [0, 1] }, true, None))"###);
 }

crates/index-scheduler/src/scheduler/create_batch.rs

@@ -3,7 +3,7 @@ use std::fmt;
 use meilisearch_types::heed::RoTxn;
 use meilisearch_types::milli::update::IndexDocumentsMethod;
 use meilisearch_types::settings::{Settings, Unchecked};
-use meilisearch_types::tasks::{Kind, KindWithContent, Status, Task};
+use meilisearch_types::tasks::{BatchStopReason, Kind, KindWithContent, Status, Task};
 use roaring::RoaringBitmap;
 use uuid::Uuid;
 
@@ -440,6 +440,7 @@ impl IndexScheduler {
         let mut current_batch = ProcessingBatch::new(batch_id);
 
         let enqueued = &self.queue.tasks.get_status(rtxn, Status::Enqueued)?;
+        let count_total_enqueued = enqueued.len();
         let failed = &self.queue.tasks.get_status(rtxn, Status::Failed)?;
 
         // 0. The priority over everything is to upgrade the instance
@@ -453,6 +454,8 @@ impl IndexScheduler {
                 current_batch.uid = batch_uid;
             }
             current_batch.processing(&mut tasks);
+            current_batch
+                .reason(BatchStopReason::TaskKindCannotBeBatched { kind: Kind::UpgradeDatabase });
             return Ok(Some((Batch::UpgradeDatabase { tasks }, current_batch)));
         }
 
@@ -462,6 +465,10 @@ impl IndexScheduler {
             let mut task =
                 self.queue.tasks.get_task(rtxn, task_id)?.ok_or(Error::CorruptedTaskQueue)?;
             current_batch.processing(Some(&mut task));
+            current_batch.reason(BatchStopReason::TaskCannotBeBatched {
+                kind: Kind::TaskCancelation,
+                id: task_id,
+            });
             return Ok(Some((Batch::TaskCancelation { task }, current_batch)));
         }
 
@@ -470,6 +477,8 @@ impl IndexScheduler {
         if !to_delete.is_empty() {
             let mut tasks = self.queue.tasks.get_existing_tasks(rtxn, to_delete)?;
             current_batch.processing(&mut tasks);
+            current_batch
+                .reason(BatchStopReason::TaskKindCannotBeBatched { kind: Kind::TaskDeletion });
             return Ok(Some((Batch::TaskDeletions(tasks), current_batch)));
         }
 
@@ -478,6 +487,8 @@ impl IndexScheduler {
         if !to_snapshot.is_empty() {
             let mut tasks = self.queue.tasks.get_existing_tasks(rtxn, to_snapshot)?;
             current_batch.processing(&mut tasks);
+            current_batch
+                .reason(BatchStopReason::TaskKindCannotBeBatched { kind: Kind::SnapshotCreation });
             return Ok(Some((Batch::SnapshotCreation(tasks), current_batch)));
         }
 
@@ -487,6 +498,10 @@ impl IndexScheduler {
             let mut task =
                 self.queue.tasks.get_task(rtxn, to_dump)?.ok_or(Error::CorruptedTaskQueue)?;
             current_batch.processing(Some(&mut task));
+            current_batch.reason(BatchStopReason::TaskCannotBeBatched {
+                kind: Kind::DumpCreation,
+                id: task.uid,
+            });
             return Ok(Some((Batch::Dump(task), current_batch)));
         }
 
@@ -504,6 +519,10 @@ impl IndexScheduler {
         } else {
             assert!(matches!(&task.kind, KindWithContent::IndexSwap { swaps } if swaps.is_empty()));
             current_batch.processing(Some(&mut task));
+            current_batch.reason(BatchStopReason::TaskCannotBeBatched {
+                kind: Kind::IndexSwap,
+                id: task.uid,
+            });
             return Ok(Some((Batch::IndexSwap { task }, current_batch)));
         };
 
@@ -525,9 +544,14 @@ impl IndexScheduler {
             1
         };
 
+        let mut stop_reason = BatchStopReason::default();
         let mut enqueued = Vec::new();
         let mut total_size: u64 = 0;
-        for task_id in index_tasks.into_iter().take(tasks_limit) {
+        for task_id in index_tasks.into_iter() {
+            if enqueued.len() >= tasks_limit {
+                stop_reason = BatchStopReason::ReachedTaskLimit { task_limit: tasks_limit };
+                break;
+            }
             let task = self
                 .queue
                 .tasks
@@ -539,16 +563,27 @@ impl IndexScheduler {
                 total_size = total_size.saturating_add(content_size);
             }
 
-            if total_size > self.scheduler.batched_tasks_size_limit && !enqueued.is_empty() {
+            let size_limit = self.scheduler.batched_tasks_size_limit;
+            if total_size > size_limit && !enqueued.is_empty() {
+                stop_reason = BatchStopReason::ReachedSizeLimit { size_limit, size: total_size };
                 break;
             }
 
             enqueued.push((task.uid, task.kind));
         }
 
-        if let Some((batchkind, create_index)) =
+        stop_reason.replace_unspecified({
+            if enqueued.len() == count_total_enqueued as usize {
+                BatchStopReason::ExhaustedEnqueuedTasks
+            } else {
+                BatchStopReason::ExhaustedEnqueuedTasksForIndex { index: index_name.to_owned() }
+            }
+        });
+
+        if let Some((batchkind, create_index, autobatch_stop_reason)) =
             autobatcher::autobatch(enqueued, index_already_exists, primary_key.as_deref())
         {
+            current_batch.reason(autobatch_stop_reason.unwrap_or(stop_reason));
             return Ok(self
                 .create_next_batch_index(
                     rtxn,

crates/index-scheduler/src/scheduler/process_snapshot_creation.rs

@@ -41,7 +41,7 @@ impl IndexScheduler {
         progress.update_progress(SnapshotCreationProgress::SnapshotTheIndexScheduler);
         let dst = temp_snapshot_dir.path().join("tasks");
         fs::create_dir_all(&dst)?;
-        self.env.copy_to_path(dst.join("data.mdb"), CompactionOption::Enabled)?;
+        self.env.copy_to_path(dst.join("data.mdb"), CompactionOption::Disabled)?;
 
         // 2.2 Create a read transaction on the index-scheduler
         let rtxn = self.env.read_txn()?;
@@ -80,7 +80,7 @@ impl IndexScheduler {
             let dst = temp_snapshot_dir.path().join("indexes").join(uuid.to_string());
             fs::create_dir_all(&dst)?;
             index
-                .copy_to_path(dst.join("data.mdb"), CompactionOption::Enabled)
+                .copy_to_path(dst.join("data.mdb"), CompactionOption::Disabled)
                 .map_err(|e| Error::from_milli(e, Some(name.to_string())))?;
         }
 
@@ -90,7 +90,7 @@ impl IndexScheduler {
         progress.update_progress(SnapshotCreationProgress::SnapshotTheApiKeys);
         let dst = temp_snapshot_dir.path().join("auth");
         fs::create_dir_all(&dst)?;
-        self.scheduler.auth_env.copy_to_path(dst.join("data.mdb"), CompactionOption::Enabled)?;
+        self.scheduler.auth_env.copy_to_path(dst.join("data.mdb"), CompactionOption::Disabled)?;
 
         // 5. Copy and tarball the flat snapshot
         progress.update_progress(SnapshotCreationProgress::CreateTheTarball);

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_enqueued_task/cancel_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -40,7 +39,7 @@ catto [0,]
 [timestamp] [0,1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":0,"matchedTasks":1,"canceledTasks":1,"originalFilter":"test_query"}, stats: {"totalNbTasks":2,"status":{"succeeded":1,"canceled":1},"types":{"documentAdditionOrUpdate":1,"taskCancelation":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":0,"matchedTasks":1,"canceledTasks":1,"originalFilter":"test_query"}, stats: {"totalNbTasks":2,"status":{"succeeded":1,"canceled":1},"types":{"documentAdditionOrUpdate":1,"taskCancelation":1},"indexUids":{"catto":1}}, stop reason: "task with id 1 of type `taskCancelation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,1,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_mix_of_tasks/aborted_indexation.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(1):
 [1,]
-{uid: 1, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"beavero":1}}, }
+{uid: 1, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"beavero":1}}, stop reason: "batched all enqueued tasks for index `beavero`", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, batch_uid: 0, status: succeeded, details: { received_documents: 1, indexed_documents: Some(1) }, kind: DocumentAdditionOrUpdate { index_uid: "catto", primary_key: None, method: ReplaceDocuments, content_file: 00000000-0000-0000-0000-000000000000, documents_count: 1, allow_index_creation: true }}
@@ -47,7 +46,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks for index `catto`", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_mix_of_tasks/cancel_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -50,8 +49,8 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [1,2,3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
-1 {uid: 1, details: {"receivedDocuments":2,"indexedDocuments":0,"matchedTasks":3,"canceledTasks":2,"originalFilter":"test_query"}, stats: {"totalNbTasks":3,"status":{"succeeded":1,"canceled":2},"types":{"documentAdditionOrUpdate":2,"taskCancelation":1},"indexUids":{"beavero":1,"wolfo":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks for index `catto`", }
+1 {uid: 1, details: {"receivedDocuments":2,"indexedDocuments":0,"matchedTasks":3,"canceledTasks":2,"originalFilter":"test_query"}, stats: {"totalNbTasks":3,"status":{"succeeded":1,"canceled":2},"types":{"documentAdditionOrUpdate":2,"taskCancelation":1},"indexUids":{"beavero":1,"wolfo":1}}, stop reason: "task with id 3 of type `taskCancelation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_mix_of_tasks/first_task_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -42,7 +41,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks for index `catto`", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_mix_of_tasks/processing_second_task_cancel_enqueued.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(1):
 [1,]
-{uid: 1, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"beavero":1}}, }
+{uid: 1, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"beavero":1}}, stop reason: "batched all enqueued tasks for index `beavero`", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, batch_uid: 0, status: succeeded, details: { received_documents: 1, indexed_documents: Some(1) }, kind: DocumentAdditionOrUpdate { index_uid: "catto", primary_key: None, method: ReplaceDocuments, content_file: 00000000-0000-0000-0000-000000000000, documents_count: 1, allow_index_creation: true }}
@@ -46,7 +45,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks for index `catto`", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_processing_dump/cancel_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -39,7 +38,7 @@ canceled [0,]
 [timestamp] [0,1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"matchedTasks":1,"canceledTasks":1,"originalFilter":"cancel dump"}, stats: {"totalNbTasks":2,"status":{"succeeded":1,"canceled":1},"types":{"taskCancelation":1,"dumpCreation":1},"indexUids":{}}, }
+0 {uid: 0, details: {"matchedTasks":1,"canceledTasks":1,"originalFilter":"cancel dump"}, stats: {"totalNbTasks":2,"status":{"succeeded":1,"canceled":1},"types":{"taskCancelation":1,"dumpCreation":1},"indexUids":{}}, stop reason: "task with id 1 of type `taskCancelation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,1,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_processing_dump/cancel_registered.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"dumpUid":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"dumpCreation":1},"indexUids":{}}, }
+{uid: 0, details: {"dumpUid":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"dumpCreation":1},"indexUids":{}}, stop reason: "task with id 0 of type `dumpCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { dump_uid: None }, kind: DumpCreation { keys: [], instance_uid: None }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_processing_task/aborted_indexation.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { received_documents: 1, indexed_documents: None }, kind: DocumentAdditionOrUpdate { index_uid: "catto", primary_key: None, method: ReplaceDocuments, content_file: 00000000-0000-0000-0000-000000000000, documents_count: 1, allow_index_creation: true }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_processing_task/cancel_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -41,7 +40,7 @@ catto: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [0,1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":0,"matchedTasks":1,"canceledTasks":1,"originalFilter":"test_query"}, stats: {"totalNbTasks":2,"status":{"succeeded":1,"canceled":1},"types":{"documentAdditionOrUpdate":1,"taskCancelation":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":0,"matchedTasks":1,"canceledTasks":1,"originalFilter":"test_query"}, stats: {"totalNbTasks":2,"status":{"succeeded":1,"canceled":1},"types":{"documentAdditionOrUpdate":1,"taskCancelation":1},"indexUids":{"catto":1}}, stop reason: "task with id 1 of type `taskCancelation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,1,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_processing_task/cancel_task_registered.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { received_documents: 1, indexed_documents: None }, kind: DocumentAdditionOrUpdate { index_uid: "catto", primary_key: None, method: ReplaceDocuments, content_file: 00000000-0000-0000-0000-000000000000, documents_count: 1, allow_index_creation: true }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_processing_task/initial_task_processing.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { received_documents: 1, indexed_documents: None }, kind: DocumentAdditionOrUpdate { index_uid: "catto", primary_key: None, method: ReplaceDocuments, content_file: 00000000-0000-0000-0000-000000000000, documents_count: 1, allow_index_creation: true }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_succeeded_task/cancel_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -41,8 +40,8 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
-1 {uid: 1, details: {"matchedTasks":1,"canceledTasks":0,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"taskCancelation":1},"indexUids":{}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks", }
+1 {uid: 1, details: {"matchedTasks":1,"canceledTasks":0,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"taskCancelation":1},"indexUids":{}}, stop reason: "task with id 1 of type `taskCancelation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/cancel_succeeded_task/initial_task_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -36,7 +35,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/do_not_batch_task_of_different_indexes/all_tasks_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -61,12 +60,12 @@ girafos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [5,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
-1 {uid: 1, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"cattos":1}}, }
-2 {uid: 2, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"girafos":1}}, }
-3 {uid: 3, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, }
-4 {uid: 4, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"cattos":1}}, }
-5 {uid: 5, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"girafos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"cattos":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"girafos":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, stop reason: "batched all enqueued tasks for index `doggos`", }
+4 {uid: 4, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"cattos":1}}, stop reason: "batched all enqueued tasks for index `cattos`", }
+5 {uid: 5, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"girafos":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/document_addition_and_index_deletion/before_index_creation.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -42,7 +41,7 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/document_addition_and_index_deletion/both_task_succeeded.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -43,8 +42,8 @@ doggos [0,1,2,]
 [timestamp] [1,2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
-1 {uid: 1, details: {"receivedDocuments":1,"indexedDocuments":0,"deletedDocuments":0}, stats: {"totalNbTasks":2,"status":{"succeeded":2},"types":{"documentAdditionOrUpdate":1,"indexDeletion":1},"indexUids":{"doggos":2}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"receivedDocuments":1,"indexedDocuments":0,"deletedDocuments":0}, stats: {"totalNbTasks":2,"status":{"succeeded":2},"types":{"documentAdditionOrUpdate":1,"indexDeletion":1},"indexUids":{"doggos":2}}, stop reason: "task with id 2 deletes the index", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/document_addition_and_index_deletion_on_unexisting_index/2.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -38,7 +37,7 @@ doggos [0,1,]
 [timestamp] [0,1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":0,"deletedDocuments":0}, stats: {"totalNbTasks":2,"status":{"succeeded":2},"types":{"documentAdditionOrUpdate":1,"indexDeletion":1},"indexUids":{"doggos":2}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":0,"deletedDocuments":0}, stats: {"totalNbTasks":2,"status":{"succeeded":2},"types":{"documentAdditionOrUpdate":1,"indexDeletion":1},"indexUids":{"doggos":2}}, stop reason: "task with id 1 deletes the index", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,1,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/insert_task_while_another_task_is_processing/after_batch_creation.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"index_a":1}}, }
+{uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"index_a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { primary_key: Some("id") }, kind: IndexCreation { index_uid: "index_a", primary_key: Some("id") }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/insert_task_while_another_task_is_processing/registered_the_second_task.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"index_a":1}}, }
+{uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"index_a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { primary_key: Some("id") }, kind: IndexCreation { index_uid: "index_a", primary_key: Some("id") }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/insert_task_while_another_task_is_processing/registered_the_third_task.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"index_a":1}}, }
+{uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"indexCreation":1},"indexUids":{"index_a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { primary_key: Some("id") }, kind: IndexCreation { index_uid: "index_a", primary_key: Some("id") }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/process_tasks_inserted_without_new_signal/processed_the_first_task.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -42,7 +41,7 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/process_tasks_inserted_without_new_signal/processed_the_second_task.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -45,8 +44,8 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
-1 {uid: 1, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"cattos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"cattos":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/process_tasks_inserted_without_new_signal/processed_the_third_task.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -46,9 +45,9 @@ cattos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
-1 {uid: 1, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"cattos":1}}, }
-2 {uid: 2, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexDeletion":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"cattos":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexDeletion":1},"indexUids":{"doggos":1}}, stop reason: "task with id 2 deletes the index", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/process_tasks_without_autobatching/first.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = false
 ### Processing batch None:
@@ -43,7 +42,7 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/process_tasks_without_autobatching/fourth.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = false
 ### Processing batch None:
@@ -49,10 +48,10 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
-1 {uid: 1, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, }
-2 {uid: 2, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, }
-3 {uid: 3, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, stop reason: "reached configured batch limit of 1 tasks", }
+2 {uid: 2, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, stop reason: "reached configured batch limit of 1 tasks", }
+3 {uid: 3, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/process_tasks_without_autobatching/second.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = false
 ### Processing batch None:
@@ -45,8 +44,8 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
-1 {uid: 1, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, stop reason: "reached configured batch limit of 1 tasks", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/process_tasks_without_autobatching/third.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = false
 ### Processing batch None:
@@ -47,9 +46,9 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, }
-1 {uid: 1, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, }
-2 {uid: 2, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"doggos":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, stop reason: "reached configured batch limit of 1 tasks", }
+2 {uid: 2, details: {"deletedDocuments":0}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentDeletion":1},"indexUids":{"doggos":1}}, stop reason: "reached configured batch limit of 1 tasks", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/create_a.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -45,7 +44,7 @@ a: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/create_b.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -48,8 +47,8 @@ b: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [1,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/create_c.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -51,9 +50,9 @@ c: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/create_d.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -54,10 +53,10 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/first_swap_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -61,11 +60,11 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [4,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
-4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","d"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
+4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","d"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 4 of type `indexSwap` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/first_swap_registered.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -57,10 +56,10 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/second_swap_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -63,12 +62,12 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [5,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
-4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","d"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, }
-5 {uid: 5, details: {"swaps":[{"indexes":["a","c"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
+4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","d"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 4 of type `indexSwap` cannot be batched", }
+5 {uid: 5, details: {"swaps":[{"indexes":["a","c"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 5 of type `indexSwap` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/third_empty_swap_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -67,13 +66,13 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [6,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
-4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","d"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, }
-5 {uid: 5, details: {"swaps":[{"indexes":["a","c"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, }
-6 {uid: 6, details: {"swaps":[]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
+4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","d"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 4 of type `indexSwap` cannot be batched", }
+5 {uid: 5, details: {"swaps":[{"indexes":["a","c"]}]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 5 of type `indexSwap` cannot be batched", }
+6 {uid: 6, details: {"swaps":[]}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 6 of type `indexSwap` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes/two_swaps_registered.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -59,10 +58,10 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes_errors/after_the_index_creation.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -54,10 +53,10 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes_errors/first_swap_failed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -62,11 +61,11 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [4,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
-4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","e"]},{"indexes":["d","f"]}]}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexSwap":1},"indexUids":{}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
+4 {uid: 4, details: {"swaps":[{"indexes":["a","b"]},{"indexes":["c","e"]},{"indexes":["d","f"]}]}, stats: {"totalNbTasks":1,"status":{"failed":1},"types":{"indexSwap":1},"indexUids":{}}, stop reason: "task with id 4 of type `indexSwap` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/swap_indexes_errors/initial_tasks_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -54,10 +53,10 @@ d: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, }
-1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, }
-2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, }
-3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, }
+0 {uid: 0, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"a":1}}, stop reason: "task with id 0 of type `indexCreation` cannot be batched", }
+1 {uid: 1, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"b":1}}, stop reason: "task with id 1 of type `indexCreation` cannot be batched", }
+2 {uid: 2, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"c":1}}, stop reason: "task with id 2 of type `indexCreation` cannot be batched", }
+3 {uid: 3, details: {"primaryKey":"id"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"indexCreation":1},"indexUids":{"d":1}}, stop reason: "task with id 3 of type `indexCreation` cannot be batched", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/task_deletion_delete_same_task_twice/initial_tasks_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -39,7 +38,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks for index `catto`", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/task_deletion_delete_same_task_twice/task_deletion_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -41,7 +40,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [2,3,]
 ----------------------------------------------------------------------
 ### All Batches:
-1 {uid: 1, details: {"matchedTasks":2,"deletedTasks":1,"originalFilter":"test_query&test_query"}, stats: {"totalNbTasks":2,"status":{"succeeded":2},"types":{"taskDeletion":2},"indexUids":{}}, }
+1 {uid: 1, details: {"matchedTasks":2,"deletedTasks":1,"originalFilter":"test_query&test_query"}, stats: {"totalNbTasks":2,"status":{"succeeded":2},"types":{"taskDeletion":2},"indexUids":{}}, stop reason: "a batch of tasks of type `taskDeletion` cannot be batched with any other type of task", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 1 [2,3,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/task_deletion_deleteable/after_registering_the_task_deletion.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -42,7 +41,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks for index `catto`", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/task_deletion_deleteable/initial_tasks_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -39,7 +38,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"catto":1}}, stop reason: "batched all enqueued tasks for index `catto`", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/task_deletion_deleteable/task_deletion_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -39,7 +38,7 @@ catto: { number_of_documents: 1, field_distribution: {"id": 1} }
 [timestamp] [2,]
 ----------------------------------------------------------------------
 ### All Batches:
-1 {uid: 1, details: {"matchedTasks":1,"deletedTasks":1,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"taskDeletion":1},"indexUids":{}}, }
+1 {uid: 1, details: {"matchedTasks":1,"deletedTasks":1,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"taskDeletion":1},"indexUids":{}}, stop reason: "a batch of tasks of type `taskDeletion` cannot be batched with any other type of task", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 1 [2,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/task_deletion_undeleteable/task_deletion_done.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -44,7 +43,7 @@ doggo [2,]
 [timestamp] [3,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"matchedTasks":2,"deletedTasks":0,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"taskDeletion":1},"indexUids":{}}, }
+0 {uid: 0, details: {"matchedTasks":2,"deletedTasks":0,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"taskDeletion":1},"indexUids":{}}, stop reason: "a batch of tasks of type `taskDeletion` cannot be batched with any other type of task", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [3,]

crates/index-scheduler/src/scheduler/snapshots/test.rs/task_deletion_undeleteable/task_deletion_processing.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [3,]
-{uid: 0, details: {"matchedTasks":2,"deletedTasks":null,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"taskDeletion":1},"indexUids":{}}, }
+{uid: 0, details: {"matchedTasks":2,"deletedTasks":null,"originalFilter":"test_query"}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"taskDeletion":1},"indexUids":{}}, stop reason: "a batch of tasks of type `taskDeletion` cannot be batched with any other type of task", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { primary_key: Some("mouse") }, kind: IndexCreation { index_uid: "catto", primary_key: Some("mouse") }}

crates/index-scheduler/src/scheduler/snapshots/test.rs/test_settings_update/settings_update_processed.snap

@@ -35,7 +35,7 @@ doggos: { number_of_documents: 0, field_distribution: {} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"embedders":{"default":{"source":"rest","apiKey":"MyXXXX...","dimensions":4,"url":"http://localhost:7777","request":"{{text}}","response":"{{embedding}}"}}}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"settingsUpdate":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {"embedders":{"default":{"source":"rest","apiKey":"MyXXXX...","dimensions":4,"url":"http://localhost:7777","request":"{{text}}","response":"{{embedding}}"}}}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"settingsUpdate":1},"indexUids":{"doggos":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]

crates/index-scheduler/src/scheduler/snapshots/test_document_addition.rs/document_addition/after_the_batch_creation.snap

@@ -1,11 +1,10 @@
 ---
 source: crates/index-scheduler/src/scheduler/test_document_addition.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch Some(0):
 [0,]
-{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"doggos":1}}, }
+{uid: 0, details: {"receivedDocuments":1,"indexedDocuments":null}, stats: {"totalNbTasks":1,"status":{"processing":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"doggos":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### All Tasks:
 0 {uid: 0, status: enqueued, details: { received_documents: 1, indexed_documents: None }, kind: DocumentAdditionOrUpdate { index_uid: "doggos", primary_key: Some("id"), method: ReplaceDocuments, content_file: 00000000-0000-0000-0000-000000000000, documents_count: 1, allow_index_creation: true }}

crates/index-scheduler/src/scheduler/snapshots/test_document_addition.rs/document_addition/once_everything_is_processed.snap

@@ -1,6 +1,5 @@
 ---
 source: crates/index-scheduler/src/scheduler/test_document_addition.rs
-snapshot_kind: text
 ---
 ### Autobatching Enabled = true
 ### Processing batch None:
@@ -36,7 +35,7 @@ doggos: { number_of_documents: 1, field_distribution: {"doggo": 1, "id": 1} }
 [timestamp] [0,]
 ----------------------------------------------------------------------
 ### All Batches:
-0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"doggos":1}}, }
+0 {uid: 0, details: {"receivedDocuments":1,"indexedDocuments":1}, stats: {"totalNbTasks":1,"status":{"succeeded":1},"types":{"documentAdditionOrUpdate":1},"indexUids":{"doggos":1}}, stop reason: "batched all enqueued tasks", }
 ----------------------------------------------------------------------
 ### Batch to tasks mapping:
 0 [0,]