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https://issues.apache.org/jira/browse/LUCENE-9584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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hackerwin7 updated LUCENE-9584:
-------------------------------
Description:
Today, in a point in set query after BKD intersect we get a DocIdSetBuilder
result, if result's iterator have no docs, then the PointInSetQuery still
create ConstantScoreScorer with an empty DocIdSetIterator.
In a Boolean Query, such as query = subQuery1 AND subQuery2 AND subQuery3 ....
subQueryN
if subQuery1 is a PointInSetQuery and get an empty result iterator, and
subsequent subQuery2 ~ subQueryN would still evaluate to call build scorer,
this is an unnecessary cost for this query if subQuery1 have already get an
empty result iterator .
was:
Today, in a point in set query after BKD intersect we get a DocIdSetBuilder
result, if result's iterator have no docs, then the PointInSetQuery still
create ConstantScoreScorer with an empty DocIdSetIterator.
In a Boolean Query, such as query = subQuery1 AND subQuery2 AND subQuery3 ....
subQueryN
if subQuery1 is a PointInSetQuery and get an empty result iterator, and
subsequent subQuery2 ~ subQueryN would still evaluate to call build scorer,
this is an unnecessary cost for this query if subQuery1 get an empty result
iterator .
> PointInSetQuery does not terminate early if result iterator has no docs
> -----------------------------------------------------------------------
>
> Key: LUCENE-9584
> URL: https://issues.apache.org/jira/browse/LUCENE-9584
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Affects Versions: 7.7.3, 8.6.3
> Reporter: hackerwin7
> Priority: Major
> Labels: performance
> Attachments: LUCENE-7.7.0-PointInSetQuery_terminate_early.patch
>
>
> Today, in a point in set query after BKD intersect we get a DocIdSetBuilder
> result, if result's iterator have no docs, then the PointInSetQuery still
> create ConstantScoreScorer with an empty DocIdSetIterator.
> In a Boolean Query, such as query = subQuery1 AND subQuery2 AND subQuery3
> .... subQueryN
> if subQuery1 is a PointInSetQuery and get an empty result iterator, and
> subsequent subQuery2 ~ subQueryN would still evaluate to call build scorer,
> this is an unnecessary cost for this query if subQuery1 have already get an
> empty result iterator .
>
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