Remove special handling of pure negative Filters in BooleanFilter
(inconsistentToBQ+broken)
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Key: LUCENE-3451
URL: https://issues.apache.org/jira/browse/LUCENE-3451
Project: Lucene - Java
Issue Type: Bug
Reporter: Uwe Schindler
Assignee: Uwe Schindler
Fix For: 4.0
We should at least in Lucene 4.0 remove the hack in BooleanFilter that allows
pure negative Filter clauses. This is not supported by BooleanQuery and
confuses users (I think that's the problem in LUCENE-3450).
The hack is buggy, as it does not respect deleted documents and returns them in
its DocIdSet.
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