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From "Hoss Man (JIRA)" <>
Subject [jira] [Updated] (SOLR-3740) ExtendedDismaxQParser (edismax) does not obey q.op for parenthesized sub-queries
Date Sat, 08 Sep 2012 00:37:08 GMT


Hoss Man updated SOLR-3740:

    Fix Version/s:     (was: 4.0)
                       (was: 3.6.2)

removing fixVersion=4.0 since there is no evidence that anyone is currently working on this
issue.  (this can certainly be revisited if volunteers step forward)

> ExtendedDismaxQParser (edismax) does not obey q.op for parenthesized sub-queries
> --------------------------------------------------------------------------------
>                 Key: SOLR-3740
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>          Components: query parsers
>    Affects Versions: 3.6.1, 4.0-BETA
>            Reporter: Jack Krupansky
> For a query such as "cat dog (fox bat fish)" with &q.op=AND, the default query operator
is only set to AND for the top-level query, and not for the parenthesize sub-query. This is
not documented behavior and rather surprising.
> This happens because edismax only simulates the default operator by forcing "mm" (minMatch)
to 100% for the top-level BooleanQuery alone and never sets the default query operator when
it invokes the classic Lucene Query parser which in turn is performing parsing and query generation
for the parenthesized sub-query.
> One solution is for edismax to always set the default query operator when calling the
classic Lucene query parser, or at least when q.op=AND.

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