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https://issues.apache.org/jira/browse/HIVE-10397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14503033#comment-14503033
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Gopal V commented on HIVE-10397:
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[~prasanth_j]: this is fine for LLAP branch, but this patch might break
hadoop-1 builds.
Because of the inheritance dependencies for Tez, you cannot make the
InputFormat implement SplitSizeEstimator in trunk.
The original idea to do this via an extra object (because java has no mixins)
was to implement OrcSplit -> ColumnarSplit + instantiate a generic
ColumnarSplitEstimator only inside Tez codepath would do the trick.
> LLAP: Implement Tez SplitSizeEstimator for Orc
> ----------------------------------------------
>
> Key: HIVE-10397
> URL: https://issues.apache.org/jira/browse/HIVE-10397
> Project: Hive
> Issue Type: Sub-task
> Affects Versions: llap
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Attachments: HIVE-10397.patch
>
>
> This is patch for HIVE-7428. For now this will be in llap branch as hive has
> not bumped up the tez version yet.
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