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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2272) Join
Date Tue, 26 Apr 2011 16:33:04 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13025310#comment-13025310
] 

Robert Muir commented on SOLR-2272:
-----------------------------------

ok, here is my formal veto:

-1: The way in which we integrate features like this is important, because it defines the
architecture of Lucene/Solr. On this issue two people voiced concerns that this feature is
not being added at the correct "level", that it is a low-level search feature that belongs
in the search engine library (Lucene). Lucene users have previously voiced desires for features
like this, you can see some previous mailing list discussion by searching mail archives (http://www.lucidimagination.com/search/?q=join)
and looking at the Lucene facet.

If you think my veto is not valid, please be aware I'm not going to get into a shouting match
with you about it. Instead, I would encourage you to raise your objection with the Lucene
PMC and call a vote. At least this way we have the discussion.


> 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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