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https://issues.apache.org/jira/browse/HIVE-14452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15459466#comment-15459466
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Matt McCline commented on HIVE-14452:
-------------------------------------
Changes for HIVE-14451 also include this performance improvement, too.
> Vectorization: BinarySortableDeserializeRead should delegate buffer copies to
> VectorDeserializeRow
> --------------------------------------------------------------------------------------------------
>
> Key: HIVE-14452
> URL: https://issues.apache.org/jira/browse/HIVE-14452
> Project: Hive
> Issue Type: Improvement
> Components: Vectorization
> Reporter: Gopal V
>
> Since the VectorDeserializeRow already calls a setVal(), the copy inside the
> lower layer is entirely wasteful.
> {code}
> BinarySortableSerDe.deserializeText(
> inputByteBuffer, columnSortOrderIsDesc[fieldIndex], tempText);
> {code}
> With HIVE-14451, the copies can be avoided for some scenarios and retained
> for others.
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