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https://issues.apache.org/jira/browse/LUCENE-8602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Simon Willnauer resolved LUCENE-8602.
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Resolution: Fixed
> Share TermsEnum if possible while applying DV updates
> ------------------------------------------------------
>
> Key: LUCENE-8602
> URL: https://issues.apache.org/jira/browse/LUCENE-8602
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Simon Willnauer
> Priority: Major
> Fix For: master (8.0), 7.7
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Today we pull a new terms enum when we apply DV updates even though the
> field stays the same which is the common case. Benchmarking this on a
> larger term dictionary with a significant number of updates shows a
> 2x improvement in performance.
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