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https://issues.apache.org/jira/browse/LUCENE-8811?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17090733#comment-17090733
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Alan Woodward commented on LUCENE-8811:
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TermInSetQuery is designed to be a more efficient replacement for a boolean
disjunction of terms, so having it trip the max clauses check would defeat the
point of having it in the first place.
> Add maximum clause count check to IndexSearcher rather than BooleanQuery
> ------------------------------------------------------------------------
>
> Key: LUCENE-8811
> URL: https://issues.apache.org/jira/browse/LUCENE-8811
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Alan Woodward
> Priority: Minor
> Fix For: master (9.0)
>
> Attachments: LUCENE-8811.patch, LUCENE-8811.patch, LUCENE-8811.patch,
> LUCENE-8811.patch, LUCENE-8811.patch, LUCENE-8811.patch
>
>
> Currently we only check whether boolean queries have too many clauses.
> However there are other ways that queries may have too many clauses, for
> instance if you have boolean queries that have themselves inner boolean
> queries.
> Could we use the new Query visitor API to move this check from BooleanQuery
> to IndexSearcher in order to make this check more consistent across queries?
> See for instance LUCENE-8810 where a rewrite rule caused the maximum clause
> count to be hit even though the total number of leaf queries remained the
> same.
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