jimczi commented on a change in pull request #897: LUCENE-8978: Maximal Of
Minimum Scores Based Concurrent Early Termination
URL: https://github.com/apache/lucene-solr/pull/897#discussion_r327454467
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File path:
lucene/core/src/java/org/apache/lucene/search/TopScoreDocCollector.java
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@@ -276,7 +283,20 @@ protected void updateMinCompetitiveScore(Scorable scorer)
throws IOException {
&& pqTop.score != Float.NEGATIVE_INFINITY) { // -Infinity is the
score of sentinels
// since we tie-break on doc id and collect in doc id order, we can
require
// the next float
- scorer.setMinCompetitiveScore(Math.nextUp(pqTop.score));
Review comment:
I am not sure that this would have any impact but theoretically you don't
need to a full pq if the minimum score in the bottom value checker is greater
than 0 ? In such case you can just check that the hit threshold is reached and
use the minimum score of the other collector to speed up the local scorer ?
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