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https://issues.apache.org/jira/browse/LUCENE-8103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17056624#comment-17056624
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David Smiley commented on LUCENE-8103:
--------------------------------------
{{ant test -Dtestcase=TestValueSources
-Dtests.method=testQueryWrapedFuncWrapedQuery -Dtests.seed=625CF512BDD7BD01
-Dtests.slow=true -Dtests.badapples=true -Dtests.locale=fr-CA
-Dtests.timezone=America/Phoenix -Dtests.asserts=true
-Dtests.file.encoding=UTF-8}}
{{java.lang.AssertionError: ITERATINGjava.lang.AssertionError: ITERATING}}
{{ at __randomizedtesting.SeedInfo.seed([625CF512BDD7BD01:36E49DF7D50086EB]:0)
at org.apache.lucene.search.AssertingScorer$3.matches(AssertingScorer.java:235)
at
org.apache.lucene.queries.function.valuesource.QueryDocValues.exists(QueryValueSource.java:156)
at
org.apache.lucene.queries.function.valuesource.QueryDocValues.floatVal(QueryValueSource.java:129)
at
org.apache.lucene.queries.function.FunctionQuery$AllScorer.score(FunctionQuery.java:120)
at org.apache.lucene.search.AssertingScorer.score(AssertingScorer.java:102)}}
> QueryValueSource should use TwoPhaseIterator
> --------------------------------------------
>
> Key: LUCENE-8103
> URL: https://issues.apache.org/jira/browse/LUCENE-8103
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/other
> Reporter: David Smiley
> Priority: Minor
> Attachments: LUCENE-8103.patch
>
>
> QueryValueSource (in "queries" module) is a ValueSource representation of a
> Query; the score is the value. It ought to try to use a TwoPhaseIterator
> from the query if it can be offered. This will prevent possibly expensive
> advancing beyond documents that we aren't interested in.
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