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Merge pull request #4141 from meilisearch/diff-indexing-searchable

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Diff indexing searchable
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Many the fish 2023-10-19 15:00:16 +02:00 committed by GitHub
commit 066221fd2b
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 279 additions and 116 deletions
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4
milli/src/update/del_add.rs
View File

@ -98,3 +98,7 @@ pub fn del_add_from_two_obkvs<K: obkv::Key + PartialOrd + Ord>(
writer.finish()
}
pub fn is_noop_del_add_obkv(del_add: KvReaderDelAdd) -> bool {
del_add.get(DelAdd::Deletion) == del_add.get(DelAdd::Addition)
}

21
milli/src/update/index_documents/extract/extract_docid_word_positions.rs
View File

@ -13,7 +13,7 @@ use crate::error::{InternalError, SerializationError};
use crate::update::del_add::{del_add_from_two_obkvs, DelAdd, KvReaderDelAdd};
use crate::{FieldId, Result, MAX_POSITION_PER_ATTRIBUTE, MAX_WORD_LENGTH};
pub type ScriptLanguageDocidsMap = HashMap<(Script, Language), RoaringBitmap>;
pub type ScriptLanguageDocidsMap = HashMap<(Script, Language), (RoaringBitmap, RoaringBitmap)>;
/// Extracts the word and positions where this word appear and
/// prefixes it by the document id.
@ -29,8 +29,7 @@ pub fn extract_docid_word_positions<R: io::Read + io::Seek>(
allowed_separators: Option<&[&str]>,
dictionary: Option<&[&str]>,
max_positions_per_attributes: Option<u32>,
) -> Result<(RoaringBitmap, grenad::Reader<File>, (ScriptLanguageDocidsMap, ScriptLanguageDocidsMap))>
{
) -> Result<(RoaringBitmap, grenad::Reader<File>, ScriptLanguageDocidsMap)> {
puffin::profile_function!();
let max_positions_per_attributes = max_positions_per_attributes
@ -39,8 +38,7 @@ pub fn extract_docid_word_positions<R: io::Read + io::Seek>(
// initialize destination values.
let mut documents_ids = RoaringBitmap::new();
let mut del_script_language_docids = HashMap::new();
let mut add_script_language_docids = HashMap::new();
let mut script_language_docids = HashMap::new();
let mut docid_word_positions_sorter = create_sorter(
grenad::SortAlgorithm::Stable,
keep_latest_obkv,
@ -134,25 +132,24 @@ pub fn extract_docid_word_positions<R: io::Read + io::Seek>(
// update script_language_docids deletions.
for (script, languages_frequency) in del_script_language_word_count {
for (language, _) in languages_frequency {
let entry = del_script_language_docids
let entry = script_language_docids
.entry((script, language))
.or_insert_with(RoaringBitmap::new);
entry.push(document_id);
.or_insert_with(|| (RoaringBitmap::new(), RoaringBitmap::new()));
entry.0.push(document_id);
}
}
// update script_language_docids additions.
for (script, languages_frequency) in add_script_language_word_count {
for (language, _) in languages_frequency {
let entry = add_script_language_docids
let entry = script_language_docids
.entry((script, language))
.or_insert_with(RoaringBitmap::new);
entry.push(document_id);
.or_insert_with(|| (RoaringBitmap::new(), RoaringBitmap::new()));
entry.1.push(document_id);
}
}
}
let script_language_docids = (del_script_language_docids, add_script_language_docids);
sorter_into_reader(docid_word_positions_sorter, indexer)
.map(|reader| (documents_ids, reader, script_language_docids))
}

68
milli/src/update/index_documents/extract/extract_word_docids.rs
View File

@ -6,12 +6,13 @@ use heed::BytesDecode;
use obkv::KvReaderU16;
use super::helpers::{
create_sorter, create_writer, merge_cbo_roaring_bitmaps, sorter_into_reader,
create_sorter, create_writer, merge_deladd_cbo_roaring_bitmaps, sorter_into_reader,
try_split_array_at, writer_into_reader, GrenadParameters,
};
use crate::error::SerializationError;
use crate::heed_codec::StrBEU16Codec;
use crate::index::db_name::DOCID_WORD_POSITIONS;
use crate::update::del_add::{is_noop_del_add_obkv, DelAdd, KvReaderDelAdd, KvWriterDelAdd};
use crate::update::MergeFn;
use crate::{DocumentId, FieldId, Result};
@ -34,14 +35,15 @@ pub fn extract_word_docids<R: io::Read + io::Seek>(
let mut word_fid_docids_sorter = create_sorter(
grenad::SortAlgorithm::Unstable,
merge_cbo_roaring_bitmaps,
merge_deladd_cbo_roaring_bitmaps,
indexer.chunk_compression_type,
indexer.chunk_compression_level,
indexer.max_nb_chunks,
max_memory.map(|x| x / 3),
);
let mut key_buffer = Vec::new();
let mut words = BTreeSet::new();
let mut del_words = BTreeSet::new();
let mut add_words = BTreeSet::new();
let mut cursor = docid_word_positions.into_cursor()?;
while let Some((key, value)) = cursor.move_on_next()? {
let (document_id_bytes, fid_bytes) = try_split_array_at(key)
@ -51,24 +53,37 @@ pub fn extract_word_docids<R: io::Read + io::Seek>(
let document_id = u32::from_be_bytes(document_id_bytes);
let fid = u16::from_be_bytes(fid_bytes);
for (_pos, word) in KvReaderU16::new(&value).iter() {
words.insert(word.to_vec());
let del_add_reader = KvReaderDelAdd::new(&value);
// extract all unique words to remove.
if let Some(deletion) = del_add_reader.get(DelAdd::Deletion) {
for (_pos, word) in KvReaderU16::new(&deletion).iter() {
del_words.insert(word.to_vec());
}
}
// extract all unique additional words.
if let Some(addition) = del_add_reader.get(DelAdd::Addition) {
for (_pos, word) in KvReaderU16::new(&addition).iter() {
add_words.insert(word.to_vec());
}
}
words_into_sorter(
document_id,
fid,
&mut key_buffer,
&mut words,
&del_words,
&add_words,
&mut word_fid_docids_sorter,
)?;
words.clear();
del_words.clear();
add_words.clear();
}
let mut word_docids_sorter = create_sorter(
grenad::SortAlgorithm::Unstable,
merge_cbo_roaring_bitmaps,
merge_deladd_cbo_roaring_bitmaps,
indexer.chunk_compression_type,
indexer.chunk_compression_level,
indexer.max_nb_chunks,
@ -77,7 +92,7 @@ pub fn extract_word_docids<R: io::Read + io::Seek>(
let mut exact_word_docids_sorter = create_sorter(
grenad::SortAlgorithm::Unstable,
merge_cbo_roaring_bitmaps,
merge_deladd_cbo_roaring_bitmaps,
indexer.chunk_compression_type,
indexer.chunk_compression_level,
indexer.max_nb_chunks,
@ -91,8 +106,12 @@ pub fn extract_word_docids<R: io::Read + io::Seek>(
);
let mut iter = word_fid_docids_sorter.into_stream_merger_iter()?;
// TODO: replace sorters by writers by accumulating values into a buffer before inserting them.
while let Some((key, value)) = iter.next()? {
// only keep the value if their is a change to apply in the DB.
if !is_noop_del_add_obkv(KvReaderDelAdd::new(value)) {
word_fid_docids_writer.insert(key, value)?;
}
let (word, fid) = StrBEU16Codec::bytes_decode(key)
.ok_or(SerializationError::Decoding { db_name: Some(DOCID_WORD_POSITIONS) })?;
@ -116,20 +135,41 @@ fn words_into_sorter(
document_id: DocumentId,
fid: FieldId,
key_buffer: &mut Vec<u8>,
words: &mut BTreeSet<Vec<u8>>,
del_words: &BTreeSet<Vec<u8>>,
add_words: &BTreeSet<Vec<u8>>,
word_fid_docids_sorter: &mut grenad::Sorter<MergeFn>,
) -> Result<()> {
puffin::profile_function!();
for word_bytes in words.iter() {
use itertools::merge_join_by;
use itertools::EitherOrBoth::{Both, Left, Right};
let mut buffer = Vec::new();
for eob in merge_join_by(del_words.iter(), add_words.iter(), |d, a| d.cmp(a)) {
buffer.clear();
let mut value_writer = KvWriterDelAdd::new(&mut buffer);
let word_bytes = match eob {
Left(word_bytes) => {
value_writer.insert(DelAdd::Deletion, document_id.to_ne_bytes()).unwrap();
word_bytes
}
Right(word_bytes) => {
value_writer.insert(DelAdd::Addition, document_id.to_ne_bytes()).unwrap();
word_bytes
}
Both(word_bytes, _) => {
value_writer.insert(DelAdd::Deletion, document_id.to_ne_bytes()).unwrap();
value_writer.insert(DelAdd::Addition, document_id.to_ne_bytes()).unwrap();
word_bytes
}
};
key_buffer.clear();
key_buffer.extend_from_slice(&word_bytes);
key_buffer.push(0);
key_buffer.extend_from_slice(&fid.to_be_bytes());
word_fid_docids_sorter.insert(&key_buffer, document_id.to_ne_bytes())?;
word_fid_docids_sorter.insert(&key_buffer, value_writer.into_inner().unwrap())?;
}
words.clear();
Ok(())
}

129
milli/src/update/index_documents/extract/extract_word_pair_proximity_docids.rs
View File

@ -1,16 +1,17 @@
use std::collections::{HashMap, VecDeque};
use std::collections::{BTreeMap, VecDeque};
use std::fs::File;
use std::{cmp, io};
use obkv::KvReaderU16;
use super::helpers::{
create_sorter, create_writer, merge_cbo_roaring_bitmaps, sorter_into_reader,
try_split_array_at, writer_into_reader, GrenadParameters, MergeFn,
create_sorter, create_writer, merge_deladd_cbo_roaring_bitmaps, try_split_array_at,
writer_into_reader, GrenadParameters, MergeFn,
};
use crate::error::SerializationError;
use crate::index::db_name::DOCID_WORD_POSITIONS;
use crate::proximity::{index_proximity, MAX_DISTANCE};
use crate::update::del_add::{DelAdd, KvReaderDelAdd, KvWriterDelAdd};
use crate::{DocumentId, Result};
/// Extracts the best proximity between pairs of words and the documents ids where this pair appear.
@ -31,7 +32,7 @@ pub fn extract_word_pair_proximity_docids<R: io::Read + io::Seek>(
.map(|_| {
create_sorter(
grenad::SortAlgorithm::Unstable,
merge_cbo_roaring_bitmaps,
merge_deladd_cbo_roaring_bitmaps,
indexer.chunk_compression_type,
indexer.chunk_compression_level,
indexer.max_nb_chunks,
@ -40,9 +41,12 @@ pub fn extract_word_pair_proximity_docids<R: io::Read + io::Seek>(
})
.collect();
let mut word_positions: VecDeque<(String, u16)> =
let mut del_word_positions: VecDeque<(String, u16)> =
VecDeque::with_capacity(MAX_DISTANCE as usize);
let mut word_pair_proximity = HashMap::new();
let mut add_word_positions: VecDeque<(String, u16)> =
VecDeque::with_capacity(MAX_DISTANCE as usize);
let mut del_word_pair_proximity = BTreeMap::new();
let mut add_word_pair_proximity = BTreeMap::new();
let mut current_document_id = None;
let mut cursor = docid_word_positions.into_cursor()?;
@ -54,50 +58,90 @@ pub fn extract_word_pair_proximity_docids<R: io::Read + io::Seek>(
// if we change document, we fill the sorter
if current_document_id.map_or(false, |id| id != document_id) {
puffin::profile_scope!("Document into sorter");
while !word_positions.is_empty() {
word_positions_into_word_pair_proximity(
&mut word_positions,
&mut word_pair_proximity,
)?;
}
document_word_positions_into_sorter(
current_document_id.unwrap(),
&word_pair_proximity,
&del_word_pair_proximity,
&add_word_pair_proximity,
&mut word_pair_proximity_docids_sorters,
)?;
word_pair_proximity.clear();
word_positions.clear();
del_word_pair_proximity.clear();
add_word_pair_proximity.clear();
}
current_document_id = Some(document_id);
for (position, word) in KvReaderU16::new(&value).iter() {
let (del, add): (Result<_>, Result<_>) = rayon::join(
|| {
// deletions
if let Some(deletion) = KvReaderDelAdd::new(&value).get(DelAdd::Deletion) {
for (position, word) in KvReaderU16::new(deletion).iter() {
// drain the proximity window until the head word is considered close to the word we are inserting.
while word_positions.get(0).map_or(false, |(_w, p)| {
while del_word_positions.get(0).map_or(false, |(_w, p)| {
index_proximity(*p as u32, position as u32) >= MAX_DISTANCE
}) {
word_positions_into_word_pair_proximity(
&mut word_positions,
&mut word_pair_proximity,
&mut del_word_positions,
&mut del_word_pair_proximity,
)?;
}
// insert the new word.
let word = std::str::from_utf8(word)?;
word_positions.push_back((word.to_string(), position));
del_word_positions.push_back((word.to_string(), position));
}
while !del_word_positions.is_empty() {
word_positions_into_word_pair_proximity(
&mut del_word_positions,
&mut del_word_pair_proximity,
)?;
}
}
Ok(())
},
|| {
// additions
if let Some(addition) = KvReaderDelAdd::new(&value).get(DelAdd::Addition) {
for (position, word) in KvReaderU16::new(addition).iter() {
// drain the proximity window until the head word is considered close to the word we are inserting.
while add_word_positions.get(0).map_or(false, |(_w, p)| {
index_proximity(*p as u32, position as u32) >= MAX_DISTANCE
}) {
word_positions_into_word_pair_proximity(
&mut add_word_positions,
&mut add_word_pair_proximity,
)?;
}
// insert the new word.
let word = std::str::from_utf8(word)?;
add_word_positions.push_back((word.to_string(), position));
}
while !add_word_positions.is_empty() {
word_positions_into_word_pair_proximity(
&mut add_word_positions,
&mut add_word_pair_proximity,
)?;
}
}
Ok(())
},
);
del?;
add?;
}
if let Some(document_id) = current_document_id {
puffin::profile_scope!("Final document into sorter");
while !word_positions.is_empty() {
word_positions_into_word_pair_proximity(&mut word_positions, &mut word_pair_proximity)?;
}
document_word_positions_into_sorter(
document_id,
&word_pair_proximity,
&del_word_pair_proximity,
&add_word_pair_proximity,
&mut word_pair_proximity_docids_sorters,
)?;
}
@ -123,11 +167,38 @@ pub fn extract_word_pair_proximity_docids<R: io::Read + io::Seek>(
/// close to each other.
fn document_word_positions_into_sorter(
document_id: DocumentId,
word_pair_proximity: &HashMap<(String, String), u8>,
del_word_pair_proximity: &BTreeMap<(String, String), u8>,
add_word_pair_proximity: &BTreeMap<(String, String), u8>,
word_pair_proximity_docids_sorters: &mut Vec<grenad::Sorter<MergeFn>>,
) -> Result<()> {
use itertools::merge_join_by;
use itertools::EitherOrBoth::{Both, Left, Right};
let mut buffer = Vec::new();
let mut key_buffer = Vec::new();
for ((w1, w2), prox) in word_pair_proximity {
for eob in
merge_join_by(del_word_pair_proximity.iter(), add_word_pair_proximity.iter(), |d, a| {
d.cmp(a)
})
{
buffer.clear();
let mut value_writer = KvWriterDelAdd::new(&mut buffer);
let ((w1, w2), prox) = match eob {
Left(key_value) => {
value_writer.insert(DelAdd::Deletion, document_id.to_ne_bytes()).unwrap();
key_value
}
Right(key_value) => {
value_writer.insert(DelAdd::Addition, document_id.to_ne_bytes()).unwrap();
key_value
}
Both(key_value, _) => {
value_writer.insert(DelAdd::Deletion, document_id.to_ne_bytes()).unwrap();
value_writer.insert(DelAdd::Addition, document_id.to_ne_bytes()).unwrap();
key_value
}
};
key_buffer.clear();
key_buffer.push(*prox as u8);
key_buffer.extend_from_slice(w1.as_bytes());
@ -135,7 +206,7 @@ fn document_word_positions_into_sorter(
key_buffer.extend_from_slice(w2.as_bytes());
word_pair_proximity_docids_sorters[*prox as usize - 1]
.insert(&key_buffer, document_id.to_ne_bytes())?;
.insert(&key_buffer, value_writer.into_inner().unwrap())?;
}
Ok(())
@ -143,7 +214,7 @@ fn document_word_positions_into_sorter(
fn word_positions_into_word_pair_proximity(
word_positions: &mut VecDeque<(String, u16)>,
word_pair_proximity: &mut HashMap<(String, String), u8>,
word_pair_proximity: &mut BTreeMap<(String, String), u8>,
) -> Result<()> {
let (head_word, head_position) = word_positions.pop_front().unwrap();
for (word, position) in word_positions.iter() {

103
milli/src/update/index_documents/extract/extract_word_position_docids.rs
View File

@ -1,15 +1,17 @@
use std::collections::HashSet;
use std::collections::BTreeSet;
use std::fs::File;
use std::io;
use obkv::KvReaderU16;
use super::helpers::{
create_sorter, merge_cbo_roaring_bitmaps, sorter_into_reader, try_split_array_at,
create_sorter, merge_deladd_cbo_roaring_bitmaps, sorter_into_reader, try_split_array_at,
GrenadParameters,
};
use crate::error::SerializationError;
use crate::index::db_name::DOCID_WORD_POSITIONS;
use crate::update::del_add::{DelAdd, KvReaderDelAdd, KvWriterDelAdd};
use crate::update::MergeFn;
use crate::{bucketed_position, DocumentId, Result};
/// Extracts the word positions and the documents ids where this word appear.
@ -27,14 +29,15 @@ pub fn extract_word_position_docids<R: io::Read + io::Seek>(
let mut word_position_docids_sorter = create_sorter(
grenad::SortAlgorithm::Unstable,
merge_cbo_roaring_bitmaps,
merge_deladd_cbo_roaring_bitmaps,
indexer.chunk_compression_type,
indexer.chunk_compression_level,
indexer.max_nb_chunks,
max_memory,
);
let mut word_positions: HashSet<(u16, Vec<u8>)> = HashSet::new();
let mut del_word_positions: BTreeSet<(u16, Vec<u8>)> = BTreeSet::new();
let mut add_word_positions: BTreeSet<(u16, Vec<u8>)> = BTreeSet::new();
let mut current_document_id: Option<u32> = None;
let mut key_buffer = Vec::new();
let mut cursor = docid_word_positions.into_cursor()?;
@ -44,36 +47,92 @@ pub fn extract_word_position_docids<R: io::Read + io::Seek>(
let document_id = DocumentId::from_be_bytes(document_id_bytes);
if current_document_id.map_or(false, |id| document_id != id) {
for (position, word_bytes) in word_positions.iter() {
key_buffer.clear();
key_buffer.extend_from_slice(word_bytes);
key_buffer.push(0);
key_buffer.extend_from_slice(&position.to_be_bytes());
word_position_docids_sorter
.insert(&key_buffer, current_document_id.unwrap().to_ne_bytes())?;
}
word_positions.clear();
words_position_into_sorter(
current_document_id.unwrap(),
&mut key_buffer,
&del_word_positions,
&add_word_positions,
&mut word_position_docids_sorter,
)?;
del_word_positions.clear();
add_word_positions.clear();
}
current_document_id = Some(document_id);
for (position, word_bytes) in KvReaderU16::new(&value).iter() {
let del_add_reader = KvReaderDelAdd::new(&value);
// extract all unique words to remove.
if let Some(deletion) = del_add_reader.get(DelAdd::Deletion) {
for (position, word_bytes) in KvReaderU16::new(deletion).iter() {
let position = bucketed_position(position);
word_positions.insert((position, word_bytes.to_vec()));
del_word_positions.insert((position, word_bytes.to_vec()));
}
}
// extract all unique additional words.
if let Some(addition) = del_add_reader.get(DelAdd::Addition) {
for (position, word_bytes) in KvReaderU16::new(addition).iter() {
let position = bucketed_position(position);
add_word_positions.insert((position, word_bytes.to_vec()));
}
}
}
if let Some(document_id) = current_document_id {
for (position, word_bytes) in word_positions {
key_buffer.clear();
key_buffer.extend_from_slice(&word_bytes);
key_buffer.push(0);
key_buffer.extend_from_slice(&position.to_be_bytes());
word_position_docids_sorter.insert(&key_buffer, document_id.to_ne_bytes())?;
}
words_position_into_sorter(
document_id,
&mut key_buffer,
&del_word_positions,
&add_word_positions,
&mut word_position_docids_sorter,
)?;
}
// TODO remove noop DelAdd OBKV
let word_position_docids_reader = sorter_into_reader(word_position_docids_sorter, indexer)?;
Ok(word_position_docids_reader)
}
fn words_position_into_sorter(
document_id: DocumentId,
key_buffer: &mut Vec<u8>,
del_word_positions: &BTreeSet<(u16, Vec<u8>)>,
add_word_positions: &BTreeSet<(u16, Vec<u8>)>,
word_position_docids_sorter: &mut grenad::Sorter<MergeFn>,
) -> Result<()> {
puffin::profile_function!();
use itertools::merge_join_by;
use itertools::EitherOrBoth::{Both, Left, Right};
let mut buffer = Vec::new();
for eob in merge_join_by(del_word_positions.iter(), add_word_positions.iter(), |d, a| d.cmp(a))
{
buffer.clear();
let mut value_writer = KvWriterDelAdd::new(&mut buffer);
let (position, word_bytes) = match eob {
Left(key) => {
value_writer.insert(DelAdd::Deletion, document_id.to_ne_bytes()).unwrap();
key
}
Right(key) => {
value_writer.insert(DelAdd::Addition, document_id.to_ne_bytes()).unwrap();
key
}
Both(key, _) => {
value_writer.insert(DelAdd::Deletion, document_id.to_ne_bytes()).unwrap();
value_writer.insert(DelAdd::Addition, document_id.to_ne_bytes()).unwrap();
key
}
};
key_buffer.clear();
key_buffer.extend_from_slice(word_bytes);
key_buffer.push(0);
key_buffer.extend_from_slice(&position.to_be_bytes());
word_position_docids_sorter.insert(&key_buffer, value_writer.into_inner().unwrap())?;
}
Ok(())
}

46
milli/src/update/index_documents/typed_chunk.rs
View File

@ -43,9 +43,7 @@ pub(crate) enum TypedChunk {
FieldIdFacetIsEmptyDocids(grenad::Reader<File>),
GeoPoints(grenad::Reader<File>),
VectorPoints(grenad::Reader<File>),
ScriptLanguageDocids(
(HashMap<(Script, Language), RoaringBitmap>, HashMap<(Script, Language), RoaringBitmap>),
),
ScriptLanguageDocids(HashMap<(Script, Language), (RoaringBitmap, RoaringBitmap)>),
}
impl TypedChunk {
@ -103,8 +101,8 @@ impl TypedChunk {
TypedChunk::VectorPoints(grenad) => {
format!("VectorPoints {{ number_of_entries: {} }}", grenad.len())
}
TypedChunk::ScriptLanguageDocids((_, addition)) => {
format!("ScriptLanguageDocids {{ number_of_entries: {} }}", addition.len())
TypedChunk::ScriptLanguageDocids(sl_map) => {
format!("ScriptLanguageDocids {{ number_of_entries: {} }}", sl_map.len())
}
}
}
@ -346,27 +344,28 @@ pub(crate) fn write_typed_chunk_into_index(
log::debug!("There are {} entries in the HNSW so far", hnsw_length);
index.put_vector_hnsw(wtxn, &new_hnsw)?;
}
TypedChunk::ScriptLanguageDocids((deletion, addition)) => {
for (key, value) in deletion {
if let Some(mut db_values) = index.script_language_docids.get(wtxn, &key)? {
db_values -= value;
if db_values.is_empty() {
index.script_language_docids.delete(wtxn, &key)?;
} else {
index.script_language_docids.put(wtxn, &key, &db_values)?;
}
}
}
for (key, value) in addition {
TypedChunk::ScriptLanguageDocids(sl_map) => {
for (key, (deletion, addition)) in sl_map {
let mut db_key_exists = false;
let final_value = match index.script_language_docids.get(wtxn, &key)? {
Some(mut db_values) => db_values | value,
None => value,
Some(db_values) => {
db_key_exists = true;
(db_values - deletion) | addition
}
None => addition,
};
if final_value.is_empty() {
// If the database entry exists, delete it.
if db_key_exists == true {
index.script_language_docids.delete(wtxn, &key)?;
}
} else {
index.script_language_docids.put(wtxn, &key, &final_value)?;
}
}
}
}
Ok((RoaringBitmap::new(), is_merged_database))
}
@ -388,13 +387,6 @@ fn merge_word_docids_reader_into_fst(
Ok(builder.into_set())
}
fn merge_roaring_bitmaps(new_value: &[u8], db_value: &[u8], buffer: &mut Vec<u8>) -> Result<()> {
let new_value = RoaringBitmap::deserialize_from(new_value)?;
let db_value = RoaringBitmap::deserialize_from(db_value)?;
let value = new_value | db_value;
Ok(serialize_roaring_bitmap(&value, buffer)?)
}
fn merge_cbo_roaring_bitmaps(
new_value: &[u8],
db_value: &[u8],