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From "Mike (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3833) Add an operator to query parser for term quorum (ie: BooleanQuery.setMinimumNumberShouldMatch)
Date Mon, 02 Apr 2012 21:07:35 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13244630#comment-13244630
] 

Mike commented on LUCENE-3833:
------------------------------

Three thoughts:
 1. Do we need to set a review flag, or are we waiting for something else to get this in?

 2. Ignoring when not a boolean makes sense to me.
 3. I'd also advocate for ignoring when a non-integer. Better to fail silently when queries
don't make sense than to throw an error. (At least that's my philosophy - don't know about
Solr's.)
                
> Add an operator to query parser for term quorum (ie: BooleanQuery.setMinimumNumberShouldMatch)
> ----------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3833
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3833
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: core/queryparser
>            Reporter: Mike
>         Attachments: LUCENE-3833.patch
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> A project I'm working on requires *term quorum* searching with stemming turned off. The
users are accostomed to Sphinx search, and thus expect a query like [ A AND (B C D)/2 ] to
return only documents that contain A or at least two of B, C or D. 
> So this document would match:
> a b c
> But this one wouldn't:
> a b
> This can be a useful form of fuzzy searching, and I think we support it via the MM parameter,
but we lack a user-facing operator for this. It would be great to add it.

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