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Posted to issues@lucene.apache.org by "Alan Woodward (Jira)" <ji...@apache.org> on 2020/04/29 13:50:00 UTC
[jira] [Resolved] (LUCENE-9349) Avoid parsing all terms in
TermInSetQuery.visit()
[ https://issues.apache.org/jira/browse/LUCENE-9349?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Woodward resolved LUCENE-9349.
-----------------------------------
Fix Version/s: 8.6
Resolution: Fixed
> Avoid parsing all terms in TermInSetQuery.visit()
> -------------------------------------------------
>
> Key: LUCENE-9349
> URL: https://issues.apache.org/jira/browse/LUCENE-9349
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Fix For: 8.6
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> TermInSetQuery currently iterates through all its prefix-encoded terms in order to build an array to pass back to its visitor when visit() is called. This seems like a waste, particularly when the visitor is not actually consuming the terms (for example, when doing a clause-count check before executing a search). Instead TermInSetQuery should use consumeTermsMatching(), and we should change the signature of this method so that it takes a BytesRunAutomaton supplier to allow for lazy instantiation.
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