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From "Grant Ingersoll (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2272) Join
Date Wed, 27 Apr 2011 01:59:03 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13025559#comment-13025559
] 

Grant Ingersoll commented on SOLR-2272:
---------------------------------------

There are technical reasons, and they aren't necessarily bullshit, it's just that not everyone
agrees on them.  If you would like, we can link all the back issues.  As Yonik has pointed
out many times, factoring these things out makes it harder on some parts of the code and while
others have pointed out it makes it better for other parts.  While I believe it is a net positive
despite the downsides, it isn't always cut and dried.  

As for the private conversations, not all of us are privy to them, so how does the PMC shut
them down?  Besides, people who live in glass houses, shouldn't throw stones.

> Join
> ----
>
>                 Key: SOLR-2272
>                 URL: https://issues.apache.org/jira/browse/SOLR-2272
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>            Reporter: Yonik Seeley
>             Fix For: 4.0
>
>         Attachments: SOLR-2272.patch, SOLR-2272.patch, SOLR-2272.patch
>
>
> Limited join functionality for Solr, mapping one set of IDs matching a query to another
set of IDs, based on the indexed tokens of the fields.
> Example:
> fq={!join  from=parent_ptr to:parent_id}child_doc:query

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