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From "Eugene Koifman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-13821) OrcSplit groups all delta files together into a single split
Date Mon, 23 May 2016 18:50:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-13821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15296869#comment-15296869
] 

Eugene Koifman commented on HIVE-13821:
---------------------------------------

is it feasible to add a test for this?

> 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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