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https://issues.apache.org/jira/browse/LUCENE-3451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14051978#comment-14051978
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Jack Krupansky commented on LUCENE-3451:
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Thanks, [[email protected]]. Although the "(a -x)" stop word case seems to
argue even more strenuously for at least an exception if ]\*:\* can't be
inserted.
Besides, the stop word case is better handled by the Lucid approach of keeping
all stop words (if they are indexed) if the sub-query terms are all stop words
as in this case. So it would be only be problematic for the case of non-indexed
stop words, which is really an anti-pattern anyway these days.
> Remove special handling of pure negative Filters in BooleanFilter, disallow
> pure negative queries in BooleanQuery
> -----------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-3451
> URL: https://issues.apache.org/jira/browse/LUCENE-3451
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: 4.9, 5.0
>
> Attachments: LUCENE-3451.patch, LUCENE-3451.patch, LUCENE-3451.patch,
> LUCENE-3451.patch, LUCENE-3451.patch
>
>
> 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.
> Also we should think about disallowing pure-negative Queries at all and throw
> UOE.
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