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From "Martijn van Groningen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3496) Support grouping by IndexDocValues
Date Mon, 14 Nov 2011 15:36:51 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149689#comment-13149689
] 

Martijn van Groningen commented on LUCENE-3496:
-----------------------------------------------

I was planning on doing this. I'm almost ready to commit it. I'm only a bit stuck on documents
that don't have a value for a group field.

The random grouping tests also add documents with a null value for the group field and an
empty string for the group field. This works fine with the term based implementations, but
not the DV based implementations (random test fail). Should we not use null as group value
if the dv based implementations are used during the test?
                
> Support grouping by IndexDocValues
> ----------------------------------
>
>                 Key: LUCENE-3496
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3496
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: modules/grouping
>            Reporter: Martijn van Groningen
>            Assignee: Martijn van Groningen
>             Fix For: 4.0
>
>         Attachments: LUCENE-3496.patch, LUCENE-3496.patch, LUCENE-3496.patch, LUCENE-3496.patch,
LUCENE-3496.patch, LUCENE-3496.patch, LUCENE-3496.patch
>
>
> Although IDV is not yet finalized (More particular the SortedSource). I think we already
can discuss / investigate implementing grouping by IDV.

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