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https://issues.apache.org/jira/browse/HIVE-8296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14153580#comment-14153580
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Gopal V commented on HIVE-8296:
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LGTM - +1.
[~vikram.dixit]: this is necessary for 0.14 over the HIVE-8156 fix.
> Tez ReduceShuffle Vectorization needs 2 data buffers (key and value) for
> adding rows
> ------------------------------------------------------------------------------------
>
> Key: HIVE-8296
> URL: https://issues.apache.org/jira/browse/HIVE-8296
> Project: Hive
> Issue Type: Bug
> Components: Tez, Vectorization
> Affects Versions: 0.14.0
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Fix For: 0.14.0
>
> Attachments: HIVE-8296.01.patch, HIVE-8296.02.patch
>
>
> We reuse the keys for the vectorized row batch and need to use a separate
> buffer (for strings) for reuse the batch for new values.
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