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https://issues.apache.org/jira/browse/LUCENE-3451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14051953#comment-14051953
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Yonik Seeley edited comment on LUCENE-3451 at 7/3/14 9:55 PM:
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bq. But I am interested in hearing why it is believed that it is "working as
designed" and whether there are really applications that would intentionally
write a list of negative clauses
Machine generated queries (including those from our own query parsers).
For example, (a -x) reduces to (-x) if "a" is a stopword. Inserting \*:\* when
a boolean query contains only negative clauses was vetoed in LUCENE-3460.
was (Author: [email protected]):
bq. But I am interested in hearing why it is believed that it is "working as
designed" and whether there are really applications that would intentionally
write a list of negative clauses
Machine generated queries (including those from our own query parsers).
For example, (a -x) reduces to (-x) if "a" is a stopword. Inserting *:* when a
boolean query contains only negative clauses was vetoed in LUCENE-3460.
> 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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