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LUCENE-8701: force the score mode of the child weight to COMPLETE if the score is required

This commit is contained in:
jimczi 2019-04-05 17:05:40 +02:00
parent 4b0c36b17b
commit 926de465ee
1 changed files with 4 additions and 1 deletions
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5
lucene/join/src/java/org/apache/lucene/search/join/ToParentBlockJoinQuery.java
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@ -39,6 +39,9 @@ import org.apache.lucene.search.TwoPhaseIterator;
import org.apache.lucene.search.Weight;
import org.apache.lucene.util.BitSet;
import static org.apache.lucene.search.ScoreMode.COMPLETE;
import static org.apache.lucene.search.ScoreMode.COMPLETE_NO_SCORES;
/**
* This query requires that you index
* children and parent docs as a single block, using the
@ -103,7 +106,7 @@ public class ToParentBlockJoinQuery extends Query {
// query is not requested.
childWeight = searcher.rewrite(new ConstantScoreQuery(childQuery)).createWeight(searcher, weightScoreMode, 0f);
} else {
childWeight = childQuery.createWeight(searcher, weightScoreMode, boost);
childWeight = childQuery.createWeight(searcher, weightScoreMode.needsScores() ? COMPLETE : COMPLETE_NO_SCORES, boost);
}
return new BlockJoinWeight(this, childWeight, parentsFilter, childScoreMode);
}