Robert Muir created LUCENE-4236:
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Summary: clean up booleanquery conjunction optimizations a bit
Key: LUCENE-4236
URL: https://issues.apache.org/jira/browse/LUCENE-4236
Project: Lucene - Java
Issue Type: Improvement
Reporter: Robert Muir
Fix For: 4.0, 5.0
Attachments: LUCENE-4236.patch
After LUCENE-3505, I want to do a slight cleanup:
* compute the term conjunctions optimization in scorer(), so its applied even
if we have optional and prohibited clauses that dont exist in the segment (e.g.
return null)
* use the term conjunctions optimization when optional.size() ==
minShouldMatch, as that means they are all mandatory, too.
* don't return booleanscorer1 when optional.size() == minShouldMatch, because
it means we have required clauses and in general BS2 should do a much better
job (e.g. use advance). I have no idea if this is the problem in SOLR-3636.
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