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From "Martijn van Groningen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-3602) Add join query to Lucene
Date Tue, 07 Feb 2012 21:28:59 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-3602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13202810#comment-13202810
] 

Martijn van Groningen commented on LUCENE-3602:
-----------------------------------------------

The joining in 3x is ~3 times slower than the joining committed to trunk. This is mainly caused
by the fact that the MTQ in trunk can do seeking while the the MTQ in 3x can only increment
to the next term.


                
> Add join query to Lucene
> ------------------------
>
>                 Key: LUCENE-3602
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3602
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: modules/join
>            Reporter: Martijn van Groningen
>             Fix For: 3.6, 4.0
>
>         Attachments: LUCENE-3602-3x.patch, LUCENE-3602-3x.patch, LUCENE-3602.patch, LUCENE-3602.patch,
LUCENE-3602.patch, LUCENE-3602.patch, LUCENE-3602.patch, LUCENE-3602.patch, LUCENE-3602.patch,
LUCENE-3602.patch, LUCENE-3602.patch, LUCENE-3602.patch
>
>
> Solr has (psuedo) join query for a while now. I think this should also be available in
Lucene.  

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