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From "Simon Willnauer (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3496) Support grouping by IndexDocValues
Date Fri, 07 Oct 2011 21:06:29 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13123201#comment-13123201
] 

Simon Willnauer commented on LUCENE-3496:
-----------------------------------------

bq.Wow, only a 9% performance penalty for not keeping the values in the JVM heap? That's quite
an achievement (and almost hard to believe, unless the base query were really expensive or
something). Nice job!

wait! this is in memory - martjin can you test with getDirectSource() instead of getSource()?
                
> 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
>         Attachments: 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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