cpoerschke commented on code in PR #13635:
URL: https://github.com/apache/lucene/pull/13635#discussion_r1778221739
##########
lucene/core/src/java/org/apache/lucene/search/AbstractKnnVectorQuery.java:
##########
@@ -156,6 +196,55 @@ private TopDocs getLeafResults(
}
}
+ private DocIdSetIterator executeSeedQuery(LeafReaderContext ctx, Weight
seedWeight)
+ throws IOException {
+ if (seedWeight != null) {
+ // Execute the seed query
+ TopScoreDocCollector seedCollector =
+ new TopScoreDocCollectorManager(
+ k /* numHits */,
+ null /* after */,
+ Integer.MAX_VALUE /* totalHitsThreshold */,
+ false /* supportsConcurrency */)
+ .newCollector();
+ LeafCollector leafCollector;
+ try {
+ leafCollector = seedCollector.getLeafCollector(ctx);
+ if (leafCollector != null) {
+ BulkScorer scorer = seedWeight.bulkScorer(ctx);
+ if (scorer != null) {
+ scorer.score(
+ leafCollector,
+ ctx.reader().getLiveDocs(),
+ 0 /* min */,
+ DocIdSetIterator.NO_MORE_DOCS /* max */);
+ }
+ leafCollector.finish();
+ }
+ } catch (
+ @SuppressWarnings("unused")
+ CollectionTerminatedException e) {
+ // there is no doc of interest in this reader context
+ // continue with the following leaf
+ leafCollector = null;
+ }
+
+ TopDocs seedTopDocs = seedCollector.topDocs();
+ return convertDocIdsToVectorOrdinals(ctx.reader(), new
TopDocsDISI(seedTopDocs));
Review Comment:
minor/subjective: could introduce local variable to avoid repeat
`ctx.reader()` call and show that the two parts of the code using the reader
are connected
```
final LeafReader leafReader = ctx.reader();
```
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