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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-13821) OrcSplit groups all delta files together into a single split
Date Mon, 23 May 2016 18:29:12 GMT
Prasanth Jayachandran created HIVE-13821:
--------------------------------------------

             Summary: 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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