Add settings route

crates/dump/src/lib.rs

@@ -331,6 +331,7 @@ pub(crate) mod test {
             facet_search: Setting::NotSet,
             prefix_search: Setting::NotSet,
             chat: Setting::NotSet,
+            vector_store: Setting::NotSet,
             _kind: std::marker::PhantomData,
         };
         settings.check()

crates/dump/src/reader/compat/v5_to_v6.rs

@@ -421,6 +421,7 @@ impl<T> From<v5::Settings<T>> for v6::Settings<v6::Unchecked> {
             facet_search: v6::Setting::NotSet,
             prefix_search: v6::Setting::NotSet,
             chat: v6::Setting::NotSet,
+            vector_store: v6::Setting::NotSet,
             _kind: std::marker::PhantomData,
         }
     }

crates/meilisearch-types/src/error.rs

@@ -396,6 +396,7 @@ InvalidDocumentEditionContext                  , InvalidRequest       , BAD_REQU
 InvalidDocumentEditionFunctionFilter           , InvalidRequest       , BAD_REQUEST ;
 EditDocumentsByFunctionError                   , InvalidRequest       , BAD_REQUEST ;
 InvalidSettingsIndexChat                       , InvalidRequest       , BAD_REQUEST ;
+InvalidSettingsVectorStore                     , InvalidRequest       , BAD_REQUEST ;
 // Export
 InvalidExportUrl                               , InvalidRequest       , BAD_REQUEST ;
 InvalidExportApiKey                            , InvalidRequest       , BAD_REQUEST ;

crates/meilisearch-types/src/settings.rs

@@ -14,6 +14,7 @@ use milli::proximity::ProximityPrecision;
 pub use milli::update::ChatSettings;
 use milli::update::Setting;
 use milli::vector::db::IndexEmbeddingConfig;
+use milli::vector::VectorStoreBackend;
 use milli::{Criterion, CriterionError, FilterableAttributesRule, Index, DEFAULT_VALUES_PER_FACET};
 use serde::{Deserialize, Serialize, Serializer};
 use utoipa::ToSchema;
@@ -320,6 +321,11 @@ pub struct Settings<T> {
     #[schema(value_type = Option<ChatSettings>)]
     pub chat: Setting<ChatSettings>,
 
+    #[serde(default, skip_serializing_if = "Setting::is_not_set")]
+    #[deserr(default, error = DeserrJsonError<InvalidSettingsVectorStore>)]
+    #[schema(value_type = Option<VectorStoreBackend>)]
+    pub vector_store: Setting<VectorStoreBackend>,
+
     #[serde(skip)]
     #[deserr(skip)]
     pub _kind: PhantomData<T>,
@@ -386,6 +392,7 @@ impl Settings<Checked> {
             facet_search: Setting::Reset,
             prefix_search: Setting::Reset,
             chat: Setting::Reset,
+            vector_store: Setting::Reset,
             _kind: PhantomData,
         }
     }
@@ -413,6 +420,7 @@ impl Settings<Checked> {
             facet_search,
             prefix_search,
             chat,
+            vector_store,
             _kind,
         } = self;
 
@@ -437,6 +445,7 @@ impl Settings<Checked> {
             localized_attributes: localized_attributes_rules,
             facet_search,
             prefix_search,
+            vector_store,
             chat,
             _kind: PhantomData,
         }
@@ -489,6 +498,7 @@ impl Settings<Unchecked> {
             facet_search: self.facet_search,
             prefix_search: self.prefix_search,
             chat: self.chat,
+            vector_store: self.vector_store,
             _kind: PhantomData,
         }
     }
@@ -569,6 +579,7 @@ impl Settings<Unchecked> {
             facet_search: other.facet_search.or(self.facet_search),
             prefix_search: other.prefix_search.or(self.prefix_search),
             chat: other.chat.clone().or(self.chat.clone()),
+            vector_store: other.vector_store.or(self.vector_store),
             _kind: PhantomData,
         }
     }
@@ -608,6 +619,7 @@ pub fn apply_settings_to_builder(
         facet_search,
         prefix_search,
         chat,
+        vector_store,
         _kind,
     } = settings;
 
@@ -825,6 +837,12 @@ pub fn apply_settings_to_builder(
         Setting::Reset => builder.reset_chat(),
         Setting::NotSet => (),
     }
+
+    match vector_store {
+        Setting::Set(vector_store) => builder.set_vector_store(*vector_store),
+        Setting::Reset => builder.reset_vector_store(),
+        Setting::NotSet => (),
+    }
 }
 
 pub enum SecretPolicy {
@@ -922,6 +940,9 @@ pub fn settings(
             (name, SettingEmbeddingSettings { inner: Setting::Set(config.into()) })
         })
         .collect();
+
+    let vector_store = index.get_vector_store(rtxn)?;
+
     let embedders = Setting::Set(embedders);
     let search_cutoff_ms = index.search_cutoff(rtxn)?;
     let localized_attributes_rules = index.localized_attributes_rules(rtxn)?;
@@ -968,6 +989,7 @@ pub fn settings(
         facet_search: Setting::Set(facet_search),
         prefix_search: Setting::Set(prefix_search.unwrap_or_default()),
         chat: Setting::Set(chat),
+        vector_store: Setting::Set(vector_store),
         _kind: PhantomData,
     };
 
@@ -1197,6 +1219,7 @@ pub(crate) mod test {
             facet_search: Setting::NotSet,
             prefix_search: Setting::NotSet,
             chat: Setting::NotSet,
+            vector_store: Setting::NotSet,
             _kind: PhantomData::<Unchecked>,
         };
 
@@ -1229,6 +1252,7 @@ pub(crate) mod test {
             facet_search: Setting::NotSet,
             prefix_search: Setting::NotSet,
             chat: Setting::NotSet,
+            vector_store: Setting::NotSet,
 
             _kind: PhantomData::<Unchecked>,
         };

crates/meilisearch/src/routes/indexes/settings.rs

@@ -520,6 +520,17 @@ make_setting_routes!(
         camelcase_attr: "chat",
         analytics: ChatAnalytics
     },
+    {
+        route: "/vector-store",
+        update_verb: patch,
+        value_type: meilisearch_types::milli::vector::VectorStoreBackend,
+        err_type: meilisearch_types::deserr::DeserrJsonError<
+            meilisearch_types::error::deserr_codes::InvalidSettingsVectorStore,
+        >,
+        attr: vector_store,
+        camelcase_attr: "vectorStore",
+        analytics: VectorStoreAnalytics
+    },
 );
 
 #[utoipa::path(
@@ -610,6 +621,7 @@ pub async fn update_all(
             facet_search: FacetSearchAnalytics::new(new_settings.facet_search.as_ref().set()),
             prefix_search: PrefixSearchAnalytics::new(new_settings.prefix_search.as_ref().set()),
             chat: ChatAnalytics::new(new_settings.chat.as_ref().set()),
+            vector_store: VectorStoreAnalytics::new(new_settings.vector_store.as_ref().set()),
         },
         &req,
     );
@@ -665,10 +677,17 @@ pub async fn get_all(
     let index = index_scheduler.index(&index_uid)?;
     let rtxn = index.read_txn()?;
     let mut new_settings = settings(&index, &rtxn, SecretPolicy::HideSecrets)?;
-    if index_scheduler.features().check_chat_completions("showing index `chat` settings").is_err() {
+
+    let features = index_scheduler.features();
+
+    if features.check_chat_completions("showing index `chat` settings").is_err() {
         new_settings.chat = Setting::NotSet;
     }
 
+    if features.check_vector_store_setting("showing index `vectorStore` settings").is_err() {
+        new_settings.vector_store = Setting::NotSet;
+    }
+
     debug!(returns = ?new_settings, "Get all settings");
     Ok(HttpResponse::Ok().json(new_settings))
 }
@@ -770,5 +789,9 @@ fn validate_settings(
         features.check_chat_completions("setting `chat` in the index settings")?;
     }
 
+    if let Setting::Set(_) = &settings.vector_store {
+        features.check_vector_store_setting("setting `vectorStore`  in the index settings")?;
+    }
+
     Ok(settings.validate()?)
 }

crates/meilisearch/src/routes/indexes/settings_analytics.rs

@@ -8,6 +8,7 @@ use std::collections::{BTreeMap, BTreeSet, HashSet};
 use meilisearch_types::facet_values_sort::FacetValuesSort;
 use meilisearch_types::locales::{Locale, LocalizedAttributesRuleView};
 use meilisearch_types::milli::update::Setting;
+use meilisearch_types::milli::vector::VectorStoreBackend;
 use meilisearch_types::milli::FilterableAttributesRule;
 use meilisearch_types::settings::{
     ChatSettings, FacetingSettings, PaginationSettings, PrefixSearchSettings,
@@ -40,6 +41,7 @@ pub struct SettingsAnalytics {
     pub facet_search: FacetSearchAnalytics,
     pub prefix_search: PrefixSearchAnalytics,
     pub chat: ChatAnalytics,
+    pub vector_store: VectorStoreAnalytics,
 }
 
 impl Aggregate for SettingsAnalytics {
@@ -200,6 +202,10 @@ impl Aggregate for SettingsAnalytics {
                 value: new.prefix_search.value.or(self.prefix_search.value),
             },
             chat: ChatAnalytics { set: new.chat.set | self.chat.set },
+            vector_store: VectorStoreAnalytics {
+                set: new.vector_store.set | self.vector_store.set,
+                value: new.vector_store.value.or(self.vector_store.value),
+            },
         })
     }
 
@@ -693,3 +699,19 @@ impl ChatAnalytics {
         SettingsAnalytics { chat: self, ..Default::default() }
     }
 }
+
+#[derive(Serialize, Default)]
+pub struct VectorStoreAnalytics {
+    pub set: bool,
+    pub value: Option<VectorStoreBackend>,
+}
+
+impl VectorStoreAnalytics {
+    pub fn new(settings: Option<&VectorStoreBackend>) -> Self {
+        Self { set: settings.is_some(), value: settings.copied() }
+    }
+
+    pub fn into_settings(self) -> SettingsAnalytics {
+        SettingsAnalytics { vector_store: self, ..Default::default() }
+    }
+}