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https://issues.apache.org/jira/browse/HIVE-13821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15296829#comment-15296829
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Prasanth Jayachandran commented on HIVE-13821:
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[~ekoifman] This patch reverts the changes that were removed from HIVE-7428.
Can you please review?
> OrcSplit groups all delta files together into a single split
> ------------------------------------------------------------
>
> Key: HIVE-13821
> URL: https://issues.apache.org/jira/browse/HIVE-13821
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.1.0
> Reporter: Prasanth Jayachandran
> Assignee: Prasanth Jayachandran
> Attachments: HIVE-13821.1.patch
>
>
> HIVE-7428 had fix for worst case column projection size estimate. It was
> removed in HIVE-10397 to return file length but for ACID strategy file length
> is passed as 0. In worst case, this always return 0 and all files ends up in
> single split.
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