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Avoid reset BlockDocsEnum#freqBuffer when indexHasFreq is false (#12997)

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Zhang Chao 2024-01-11 22:37:52 +08:00 committed by GitHub
parent 4b1180372e
commit 75e1a0b96c
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2 changed files with 5 additions and 3 deletions
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2
lucene/CHANGES.txt
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@ -199,6 +199,8 @@ Optimizations
* GITHUB#12841: Move group-varint encoding/decoding logic to DataOutput/DataInput. (Adrien Grand, Zhang Chao, Uwe Schindler)
* GITHUB#:12997 Avoid reset BlockDocsEnum#freqBuffer when indexHasFreq is false. (Zhang Chao, Adrien Grand)
Bug Fixes
---------------------
* GITHUB#12866: Prevent extra similarity computation for single-level HNSW graphs. (Kaival Parikh)

6
lucene/core/src/java/org/apache/lucene/codecs/lucene99/Lucene99PostingsReader.java
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@ -400,9 +400,9 @@ public final class Lucene99PostingsReader extends PostingsReaderBase {
this.needsFreq = PostingsEnum.featureRequested(flags, PostingsEnum.FREQS);
this.isFreqsRead = true;
if (indexHasFreq == false || needsFreq == false) {
for (int i = 0; i < ForUtil.BLOCK_SIZE; ++i) {
freqBuffer[i] = 1;
}
// Filling this buffer may not be cheap when doing primary key lookups, so we make sure to
// not fill more than `docFreq` entries.
Arrays.fill(freqBuffer, 0, Math.min(ForUtil.BLOCK_SIZE, docFreq), 1);
}
accum = 0;
blockUpto = 0;