rust/tantivy
1
0
Fork 0
mirror of https://github.com/quickwit-oss/tantivy.git synced 2026-08-18 03:58:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

Tighen Block-Max in single-scorer (#2897)

Browse Source 
In the Block-Max WAND single-scorer, it uses block_max_score() < threshold,
whereas the multi-term one uses  block_max_score_upperbound <= threshold.

As both of these are guarded later on with if score > threshold we can
use the more efficent form in single-scorer.

Single-scorer block skip (<, should be <=): https://github.com/quickwit-oss/tantivy/blob/main/src/query/boolean_query/block_wand.rs#L231
Multi-scorer block skip (already <=): https://github.com/quickwit-oss/tantivy/blob/main/src/query/boolean_query/block_wand.rs#L179
Single-scorer per-doc guard (>): https://github.com/quickwit-oss/tantivy/blob/main/src/query/boolean_query/block_wand.rs#L246
Multi-scorer per-doc guard (>): https://github.com/quickwit-oss/tantivy/blob/main/src/query/boolean_query/block_wand.rs#L206

This will improve performance when there are many identical scores.
This commit is contained in:
James Sewell
2026-04-26 00:13:07 +12:00
committed by GitHub
parent 73ad18fa1e
commit 322286ee16
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/query/boolean_query/block_wand.rs
+1 -1
View File
@@ -228,7 +228,7 @@ pub fn block_wand_single_scorer(
loop {
// We position the scorer on a block that can reach
// the threshold.
while scorer.block_max_score() < threshold {
while scorer.block_max_score() <= threshold {
let last_doc_in_block = scorer.last_doc_in_block();
if last_doc_in_block == TERMINATED {
return;