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https://issues.apache.org/jira/browse/SOLR-4035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Nothman updated SOLR-4035:
-------------------------------

    Attachment: SOLR-4035.patch

Here's a fairly quick-and-dirty patch, adding a parameter scop ("score 
operator") which, when set to "sum", uses a standard boolean OR query rather 
than a max for disjunctions.
                
> Expose makeDismax as a parameter to ExtendedDismaxQParser
> ---------------------------------------------------------
>
>                 Key: SOLR-4035
>                 URL: https://issues.apache.org/jira/browse/SOLR-4035
>             Project: Solr
>          Issue Type: New Feature
>          Components: query parsers
>    Affects Versions: 4.0
>            Reporter: Joel Nothman
>            Priority: Trivial
>         Attachments: SOLR-4035.patch
>
>
> The edismax query parser is much more than a parser of queries, a disjunction 
> maximizer or the sum of those parts. Some users may wish to use, for example, 
> its field level approach to boosting, but may not desire the dismax scoring, 
> preferring the interpolated score of a boolean OR.
> The ExtendedDismaxQueryParserPlugin is already able to produce such boolean 
> queries, when ExtendedSolrQueryParser.makeDismax == false. This should be 
> exposed as a query parameter.

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