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https://issues.apache.org/jira/browse/LUCENE-8424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16559321#comment-16559321
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Tapan Vaishnav commented on LUCENE-8424:
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Hi [~romseygeek],
I have added the updated patch.
After changing the payload value for the second query term as null,
AveragePayloadFunction and MinPayloadFunction scores have been changed and
updated accordingly.
Also, the If-Condition has been put in a more appropriate position.
Please have a look and let me know if this needs any changes.
Thanks in advance.
> Payload null value exception handling
> -------------------------------------
>
> Key: LUCENE-8424
> URL: https://issues.apache.org/jira/browse/LUCENE-8424
> Project: Lucene - Core
> Issue Type: Bug
> Affects Versions: 7.2, 7.3.1
> Reporter: Tapan Vaishnav
> Assignee: Alan Woodward
> Priority: Minor
> Attachments: LUCENE-8424.patch, LUCENE-8424.patch
>
>
> If-Condition to check payload null value in _PayloadScoreQuery.java_ was
> removed in LUCENE-8038. Because of that, regarding of the payload value,
> _payloadsSeen_ is always getting increment. This has compromised the overall
> score of the document(for instance, as payloadSeens is always greater than 0,
> docScore() in _MinPayloadFunction.java_ only returns payloadScore which can
> be zero depending on the payload value). Ideally, it should've returned 1 in
> case of _payload==null_.
> I have added a simple patch to get started, Please let me know if it needs
> any improvements.
> Thanks in advance.
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