cpoerschke commented on code in PR #13635:
URL: https://github.com/apache/lucene/pull/13635#discussion_r1778453629
##########
lucene/core/src/java/org/apache/lucene/search/AbstractKnnVectorQuery.java:
##########
@@ -156,6 +196,49 @@ private TopDocs getLeafResults(
}
}
+ private DocIdSetIterator executeSeedQuery(LeafReaderContext ctx, Weight
seedWeight)
+ throws IOException {
+ if (seedWeight == null) return null;
+ // Execute the seed query
+ TopScoreDocCollector seedCollector =
+ new TopScoreDocCollectorManager(
+ k /* numHits */,
+ null /* after */,
+ Integer.MAX_VALUE /* totalHitsThreshold */,
+ false /* supportsConcurrency */)
+ .newCollector();
+ final LeafReader leafReader = ctx.reader();
+ try {
+ final LeafCollector leafCollector = seedCollector.getLeafCollector(ctx);
+ if (leafCollector != null) {
+ BulkScorer scorer = seedWeight.bulkScorer(ctx);
+ if (scorer != null) {
+ scorer.score(
+ leafCollector,
+ leafReader.getLiveDocs(),
+ 0 /* min */,
+ DocIdSetIterator.NO_MORE_DOCS /* max */);
+ }
+ leafCollector.finish();
+ }
+ } catch (
+ @SuppressWarnings("unused")
+ CollectionTerminatedException e) {
+ }
Review Comment:
So that `leafCollector.finish()` is called even when
`CollectionTerminatedException` was caught, and because (by inspection)
`getLeafCollector` on this code path does not throw that exception.
```suggestion
final LeafReader leafReader = ctx.reader();
final LeafCollector leafCollector =
seedCollector.getLeafCollector(ctx);
if (leafCollector != null) {
try {
BulkScorer scorer = seedWeight.bulkScorer(ctx);
if (scorer != null) {
scorer.score(
leafCollector,
leafReader.getLiveDocs(),
0 /* min */,
DocIdSetIterator.NO_MORE_DOCS /* max */);
}
} catch (
@SuppressWarnings("unused")
CollectionTerminatedException e) {
}
leafCollector.finish();
}
```
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