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https://issues.apache.org/jira/browse/SOLR-15185?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17295761#comment-17295761
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ASF subversion and git services commented on SOLR-15185:
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Commit ddbd3b88ec8a9c3acc55e351f94f370a11f514b5 in lucene-solr's branch
refs/heads/master from David Smiley
[ https://gitbox.apache.org/repos/asf?p=lucene-solr.git;h=ddbd3b8 ]
SOLR-15185: Optimize Hash QParser (#1524)
used in parallel() streaming expression. Hash algorithm is different.
* Simpler
* Don't use Filter (to be removed)
* Do use TwoPhaseIterator, not PostFilter
* Don't pre-compute matching docs (wasteful)
* Support more fields, and more field types
* Faster hash on Strings (avoid Char conversion)
* Stronger hash when using multiple fields
> Improve "hash" QParser
> ----------------------
>
> Key: SOLR-15185
> URL: https://issues.apache.org/jira/browse/SOLR-15185
> Project: Solr
> Issue Type: Improvement
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Major
> Time Spent: 1h
> Remaining Estimate: 0h
>
> * Don't use Filter (to be removed)
> * Do use TwoPhaseIterator, not PostFilter
> * Don't pre-compute matching docs (wasteful)
> * Support more fields, and more field types
> * Faster hash on Strings (avoid Char conversion)
> * Stronger hash when using multiple fields
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