[jira] [Updated] (SOLR-5536) Add ValueSource collapse criteria to CollapsingQParsingPlugin

["Peter Keegan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-5536?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Peter Keegan updated SOLR-5536:
-------------------------------

    Attachment: SOLR-5536-edited.patch

I wasn't able to install the latest patch because of some extraneous lines. I've uploaded a version that works for me. Also, it looks like the tests got dropped.

Thanks,
Peter

> Add ValueSource collapse criteria to CollapsingQParsingPlugin
> -------------------------------------------------------------
>
>                 Key: SOLR-5536
>                 URL: https://issues.apache.org/jira/browse/SOLR-5536
>             Project: Solr
>          Issue Type: Improvement
>          Components: search
>    Affects Versions: 4.6
>            Reporter: Joel Bernstein
>            Assignee: Joel Bernstein
>            Priority: Minor
>             Fix For: 4.7, 5.0
>
>         Attachments: SOLR-5536-edited.patch, SOLR-5536.patch, SOLR-5536.patch, SOLR-5536.patch, SOLR-5536.patch
>
>
> It would be useful for the CollapsingQParserPlugin to support ValueSource collapse criteria.
> Proposed syntax:
> {code}
> fq={!collapse field=collapse_field max=value_source}
> {code}
> This ticket will also introduce a function query called "cscore",  which will return the score of the current document being collapsed. This will allow score to be incorporated into collapse criteria functions.
> A simple example of the cscore usage:
> {code}
> fq={!collapse field=collapse_field max=sum(cscore(), field(x))}
> {code}
>  



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