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From "Robert Muir (JIRA)" <>
Subject [jira] [Commented] (LUCENE-4378) QueryParsers do not support negative boosts
Date Wed, 12 Sep 2012 01:15:07 GMT


Robert Muir commented on LUCENE-4378:

I just said I disagreed, nothing more. I don't think its a good idea for a general-purpose

> QueryParsers do not support negative boosts
> -------------------------------------------
>                 Key: LUCENE-4378
>                 URL:
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Hoss Man
>         Attachments: LUCENE-4378-test.patch
> Negative query boosts have been supported at the "Query" object level for a long time
(resulting in negative scores for matching documents), but evidently we never updated the
QueryParsers to know about this - attempting to specify a negative boost in the query string
results in a parse error.
> we should probably add this to the parser grammer(s)

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