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From "Doug Mittendorf (JIRA)" <>
Subject [jira] [Updated] (SOLR-2604) Backport Join support to Solr 3.x
Date Fri, 17 Jun 2011 18:53:47 GMT


Doug Mittendorf updated SOLR-2604:

    Attachment: SOLR-2604.patch

> Backport Join support to Solr 3.x
> ---------------------------------
>                 Key: SOLR-2604
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>            Reporter: Doug Mittendorf
>            Priority: Minor
>             Fix For: 3.3
>         Attachments: SOLR-2604.patch
> Join support was recently added to Solr trunk (4.0).  We have a need for this functionality,
but don't want to upgrade to trunk, so I spent some time back-porting the feature to work
with the 3.x APIs.  Not all of the optimizations that Yonik implemented have been ported since
the 3.x APIs don't allow the same low-level access to the index, but the basic functionality
is in place and seems to work well when joining between an index with 1.2M docs and another
with 300k docs.  
> I still have yet to back-port the unit tests as those are heavily dependent on other
4.0 code, but wanted to go ahead and post the initial code in case others can make use of

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