Description
See SOLR-14554. MultiCollector creates a scorer that explicitly prevents setting the minCompetitiveScore:
@Override
public void setScorer(Scorable scorer) throws IOException {
if (cacheScores) {
scorer = new ScoreCachingWrappingScorer(scorer);
}
scorer = new FilterScorable(scorer) {
@Override
public void setMinCompetitiveScore(float minScore) throws IOException {
// Ignore calls to setMinCompetitiveScore so that if we wrap two
// collectors and one of them wants to skip low-scoring hits, then
// the other collector still sees all hits. We could try to reconcile
// min scores and take the maximum min score across collectors, but
// this is very unlikely to be helpful in practice.
}
};
for (int i = 0; i < numCollectors; ++i) {
final LeafCollector c = collectors[i];
c.setScorer(scorer);
}
}
Solr uses MultiCollector when scores are requested (to collect the max score), which means it wouldn't be able to use WAND algorithm.
Attachments
Issue Links
- relates to
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SOLR-14554 BMW algorithm isn't used when scores are requested
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- Closed
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- links to
