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https://issues.apache.org/jira/browse/LUCENE-9555?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mayya Sharipova updated LUCENE-9555:
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Description:
Some collectors provide iterators that can efficiently skip non-competitive
docs. When using DefaultBulkScorer#score function we create a conjunction of
scorerIterator and collectorIterator. The problem could be if scorerIterator
has already been advanced. As collectorIterator always starts from a docID =
-1, and for creation of conjunction iterator we need all of its
sub-iterators to be on the same doc, the creation of conjunction iterator will
fail.
We need to create a conjunction between scorerIterator and collectorIterator
only if scorerIterator has not been advanced yet.
Relates to https://issues.apache.org/jira/browse/LUCENE-9280
Relates to https://issues.apache.org/jira/browse/LUCENE-9541
was:
Some collectors provide iterators that can efficiently skip non-competitive
docs. When using DefaultBulkScorer#score function
we create a conjunction of scorerIterator and collectorIterator. The problem
could be if scorerIterator has already been advanced. As collectorIterator
always starts from a docID = -1, and for creation of conjunction iterator we
need all of its
sub-iterators to be on the same doc, the creation of conjunction iterator will
fail.
We need to create a conjunction between scorerIterator and collectorIterator
only if scorerIterator has not been advanced yet.
Relates to https://issues.apache.org/jira/browse/LUCENE-9280
Relates to https://issues.apache.org/jira/browse/LUCENE-9541
> Sort optimization failure if scorerIterator is already advanced
> ---------------------------------------------------------------
>
> Key: LUCENE-9555
> URL: https://issues.apache.org/jira/browse/LUCENE-9555
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Mayya Sharipova
> Priority: Minor
>
> Some collectors provide iterators that can efficiently skip non-competitive
> docs. When using DefaultBulkScorer#score function we create a conjunction of
> scorerIterator and collectorIterator. The problem could be if scorerIterator
> has already been advanced. As collectorIterator always starts from a docID =
> -1, and for creation of conjunction iterator we need all of its
> sub-iterators to be on the same doc, the creation of conjunction iterator
> will fail.
> We need to create a conjunction between scorerIterator and collectorIterator
> only if scorerIterator has not been advanced yet.
> Relates to https://issues.apache.org/jira/browse/LUCENE-9280
> Relates to https://issues.apache.org/jira/browse/LUCENE-9541
>
>
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