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From "Mikhail Khludnev (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-3076) Solr should support block joins
Date Tue, 27 Mar 2012 05:47:45 GMT

    [ https://issues.apache.org/jira/browse/SOLR-3076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239202#comment-13239202
] 

Mikhail Khludnev commented on SOLR-3076:
----------------------------------------

Michael,

It's a great point about a contrast between QPs for query time and index time joins. I haven't
realized it before. Completely agree.

bq. So perhaps it's fine to add crazy-expert syntax that end users would rarely use but search
app developers might...?

That's actually what I'm talking about - start from it. 

Also, I don't assume that this "crazy expert syntax" is a termination stage for the this issue.
We can have a kind of modular approach here: ER-schema module will translate plain set of
filter queries into the BJQ tree expressed in "crazy expert syntax". 
                
> Solr should support block joins
> -------------------------------
>
>                 Key: SOLR-3076
>                 URL: https://issues.apache.org/jira/browse/SOLR-3076
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Grant Ingersoll
>         Attachments: SOLR-3076.patch, SOLR-3076.patch, SOLR-3076.patch, SOLR-3076.patch,
SOLR-3076.patch, bjq-vs-filters-backward-disi.patch, bjq-vs-filters-illegal-state.patch, child-bjqparser.patch,
parent-bjq-qparser.patch, parent-bjq-qparser.patch, solrconf-bjq-erschema-snippet.xml, tochild-bjq-filtered-search-fix.patch
>
>
> Lucene has the ability to do block joins, we should add it to Solr.

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