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https://issues.apache.org/jira/browse/LUCENE-8038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16391189#comment-16391189
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Nathan Gass commented on LUCENE-8038:
-------------------------------------
With my current test setup (elasticsearch 6.2.2 and delimited_payload filter),
the provided PayloadDecoder.FLOAT_DECODER did not work correctly. I had to
provide my own looking like this `payload-> payload == null ? 1 :
PayloadHelper.decodeFloat(payload.bytes, payload.offset)`.
I didn't look further into it and am therefore not sure what the exact
problem is.
> 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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