jpountz opened a new pull request, #961:
URL: https://github.com/apache/lucene/pull/961
As suggested by @zhaih on #950, we could support more cases in
`BooleanWeight#count`. This PR adds support for these cases specifically:
- Pure disjunctions where only one clause has a non-zero count.
- Pure disjunctions where one clause matches all docs.
- Negations where positive clauses match all docs (pure negation).
- Negations where positive clauses match no docs.
- Negations where negative clauses match no docs.
- Negations where negative clauses match all docs.
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