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https://issues.apache.org/jira/browse/SOLR-3076?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mikhail Khludnev updated SOLR-3076:
-----------------------------------

    Attachment: Screen Shot 2012-07-17 at 1.12.11 AM.png
                solrconfig.xml.patch
                SOLR-3076.patch

Hello,

I'm attaching the patch includes index support SOLR-3535. significant 
improvement is SolrJ support.

solrconfig.xml.patch shows how to enable this magic for "examples" instance.

I did the same benchmark as in 
http://www.lucidimagination.com/blog/2012/06/20/solr-and-joins/ with queries 
like: 

q=text_all:(autumn OR lie)&fq={!parent which=kind:body}acl:[5326 TO 5326]
q=text_all:(presumably OR isolate OR resistance)&fq={!parent 
which=kind:body}acl:[1937 TO 1940]
q=text_all:(nice OR junior OR great)&fq={!parent which=kind:body}acl:[33 TO 36]

it gives me 0.3 sec avg latency on MacBookPro. see attached solrmeter 
screenshot. 
 
                
> 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, SOLR-3076.patch, Screen Shot 2012-07-17 at 
> 1.12.11 AM.png, 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, solrconfig.xml.patch, 
> tochild-bjq-filtered-search-fix.patch
>
>
> Lucene has the ability to do block joins, we should add it to Solr.

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