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https://issues.apache.org/jira/browse/SOLR-1166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12709591#action_12709591
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Yonik Seeley commented on SOLR-1166:
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performance improvement for DocSet generation:
~14% for term filters that match a lot of documents
~10% for a boolean query with 2 optional terms that match a lot of docs
I plan on committing shortly.
> speed up DocSet generation for term queries and avoid scoring for all queries.
> ------------------------------------------------------------------------------
>
> Key: SOLR-1166
> URL: https://issues.apache.org/jira/browse/SOLR-1166
> Project: Solr
> Issue Type: Improvement
> Reporter: Yonik Seeley
> Assignee: Yonik Seeley
> Fix For: 1.4
>
> Attachments: SOLR-1166.patch, SOLR-1166.patch
>
>
> Use subreaders, bypass scoring, and use more efficient termdocs APIs to speed
> up docset generation.
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