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https://issues.apache.org/jira/browse/HIVE-13915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311618#comment-15311618
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Sergey Shelukhin commented on HIVE-13915:
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I think the 2nd part needs to be postponed until the proper API is there. The
API is weird enough as is to also introduce heterogeneous rows to the UDTF
result to make it less redundant.
> Avoid sending the VertexSpec along with each fragment in GenericUDTFGetSplits
> -----------------------------------------------------------------------------
>
> Key: HIVE-13915
> URL: https://issues.apache.org/jira/browse/HIVE-13915
> Project: Hive
> Issue Type: Improvement
> Reporter: Siddharth Seth
>
> After changes in HIVE-13675, TaskSpec no longer needs to be constructed per
> split, and VertexSpec does not need to be sent over the wire for each split.
> Considering that TaskSpec and VertexSpec can be fairly large - we should
> avoid sending them.
> cc [~jdere], [~sershe]
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