[
https://issues.apache.org/jira/browse/LUCENE-4378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453663#comment-13453663
]
Robert Muir commented on LUCENE-4378:
-------------------------------------
{quote}
My confusion is that your argument seems like it confluates the concept/syntax
with an implementation – you're saying you don't like a particular
implementation, therefore you don't think QueryParser should allow for the
concept.
{quote}
Not really, I'm not suggesting we support negative boosts at all. I'm
suggesting a way to support the use case of optional clauses that, if they
match,
cause the other part to return a lower score.
I don't think negative boost syntax is the way to achieve that either.
> QueryParsers do not support negative boosts
> -------------------------------------------
>
> Key: LUCENE-4378
> URL: https://issues.apache.org/jira/browse/LUCENE-4378
> 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)
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
