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https://issues.apache.org/jira/browse/LUCENE-9796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17292769#comment-17292769
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Bruno Roustant commented on LUCENE-9796:
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+1
> fix SortedDocValues to no longer extend BinaryDocValues
> -------------------------------------------------------
>
> Key: LUCENE-9796
> URL: https://issues.apache.org/jira/browse/LUCENE-9796
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Priority: Major
> Attachments: LUCENE-9796.patch, LUCENE-9796_prototype.patch
>
>
> SortedDocValues give ordinals and a way to derefence ordinal as a byte[]
> But currently they *extend* BinaryDocValues, which allows directly calling
> {{binaryValue()}}.
> This allows them to act as a "slow" BinaryDocValues, but it is a performance
> trap, especially now that terms bytes may be block-compressed (LUCENE-9663).
> I think this should be detangled to prevent performance traps like
> LUCENE-9795: SortedDocValues shouldn't have the trappy inherited
> {{binaryValue()}} method that implicitly derefs the ord for the doc, then the
> term bytes for the ord.
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