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https://issues.apache.org/jira/browse/LUCENE-8038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16552456#comment-16552456
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Alan Woodward commented on LUCENE-8038:
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I think it's a bug... we don't really have enough tests around
PayloadScoreQuery, and in particular it seems we don't test the case where some
positions have a payload and some don't.
This is a released issue, would you mind opening a new one? We should change
the collector to add back in the condition above, and change the contract of
PayloadDecoder to say that it won't accept {{null}}
> Decouple payload decoding from Similarity
> -----------------------------------------
>
> Key: LUCENE-8038
> URL: https://issues.apache.org/jira/browse/LUCENE-8038
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Alan Woodward
> Assignee: Alan Woodward
> Priority: Major
> Fix For: 7.2
>
> Attachments: LUCENE-8038-master.patch, LUCENE-8038.patch
>
>
> PayloadScoreQuery is the only place that currently uses
> SimScorer.computePayloadFactor(), and as discussed on LUCENE-8014, this seems
> like the wrong place for it. We should instead add a PayloadDecoder
> abstraction that is passed to PayloadScoreQuery.
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