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refactor WordPrefixDocids to take dbs instead of indexes

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This commit is contained in:
ad hoc
2022-03-25 10:20:39 +01:00
parent c4c6e35352
commit ba0bb29cd8
2 changed files with 17 additions and 9 deletions
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6
milli/src/update/index_documents/mod.rs
View File

@@ -441,7 +441,11 @@ where
let word_docids_iter = word_docids_builder.build().into_stream_merger_iter()?;
// Run the word prefix docids update operation.
let mut builder = WordPrefixDocids::new(self.wtxn, self.index);
let mut builder = WordPrefixDocids::new(
self.wtxn,
self.index.word_docids.clone(),
self.index.word_prefix_docids.clone(),
);
builder.chunk_compression_type = self.indexer_config.chunk_compression_type;
builder.chunk_compression_level = self.indexer_config.chunk_compression_level;
builder.max_nb_chunks = self.indexer_config.max_nb_chunks;

20
milli/src/update/word_prefix_docids.rs
View File

@@ -1,16 +1,18 @@
use std::collections::{HashMap, HashSet};
use grenad::CompressionType;
use heed::types::ByteSlice;
use heed::types::{ByteSlice, Str};
use heed::Database;
use crate::update::index_documents::{
create_sorter, merge_roaring_bitmaps, sorter_into_lmdb_database, CursorClonableMmap, MergeFn,
};
use crate::{Index, Result};
use crate::{Result, RoaringBitmapCodec};
pub struct WordPrefixDocids<'t, 'u, 'i> {
wtxn: &'t mut heed::RwTxn<'i, 'u>,
index: &'i Index,
word_docids: Database<Str, RoaringBitmapCodec>,
word_prefix_docids: Database<Str, RoaringBitmapCodec>,
pub(crate) chunk_compression_type: CompressionType,
pub(crate) chunk_compression_level: Option<u32>,
pub(crate) max_nb_chunks: Option<usize>,
@@ -20,11 +22,13 @@ pub struct WordPrefixDocids<'t, 'u, 'i> {
impl<'t, 'u, 'i> WordPrefixDocids<'t, 'u, 'i> {
pub fn new(
wtxn: &'t mut heed::RwTxn<'i, 'u>,
index: &'i Index,
word_docids: Database<Str, RoaringBitmapCodec>,
word_prefixes_docids: Database<Str, RoaringBitmapCodec>,
) -> WordPrefixDocids<'t, 'u, 'i> {
WordPrefixDocids {
wtxn,
index,
word_docids,
word_prefix_docids: word_prefixes_docids,
chunk_compression_type: CompressionType::None,
chunk_compression_level: None,
max_nb_chunks: None,
@@ -83,7 +87,7 @@ impl<'t, 'u, 'i> WordPrefixDocids<'t, 'u, 'i> {
}
// We fetch the docids associated to the newly added word prefix fst only.
let db = self.index.word_docids.remap_data_type::<ByteSlice>();
let db = self.word_docids.remap_data_type::<ByteSlice>();
for prefix in new_prefix_fst_words {
let prefix = std::str::from_utf8(prefix.as_bytes())?;
for result in db.prefix_iter(self.wtxn, prefix)? {
@@ -93,7 +97,7 @@ impl<'t, 'u, 'i> WordPrefixDocids<'t, 'u, 'i> {
}
// We remove all the entries that are no more required in this word prefix docids database.
let mut iter = self.index.word_prefix_docids.iter_mut(self.wtxn)?.lazily_decode_data();
let mut iter = self.word_prefix_docids.iter_mut(self.wtxn)?.lazily_decode_data();
while let Some((prefix, _)) = iter.next().transpose()? {
if del_prefix_fst_words.contains(prefix.as_bytes()) {
unsafe { iter.del_current()? };
@@ -105,7 +109,7 @@ impl<'t, 'u, 'i> WordPrefixDocids<'t, 'u, 'i> {
// We finally write the word prefix docids into the LMDB database.
sorter_into_lmdb_database(
self.wtxn,
*self.index.word_prefix_docids.as_polymorph(),
*self.word_prefix_docids.as_polymorph(),
prefix_docids_sorter,
merge_roaring_bitmaps,
)?;