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Posted to dev@hive.apache.org by "Prasanth Jayachandran (JIRA)" <ji...@apache.org> on 2015/11/18 02:17:10 UTC

[jira] [Created] (HIVE-12451) Orc fast file merging/concatenation should be disabled for ACID tables

Prasanth Jayachandran created HIVE-12451:
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             Summary: Orc fast file merging/concatenation should be disabled for ACID tables
                 Key: HIVE-12451
                 URL: https://issues.apache.org/jira/browse/HIVE-12451
             Project: Hive
          Issue Type: Bug
    Affects Versions: 1.3.0, 2.0.0
            Reporter: Prasanth Jayachandran
            Assignee: Prasanth Jayachandran


For ACID tables merging of small files should happen only through compaction. We should disable "alter table .. concatenate" for ACID tables. We should also disable ConditionalMergeFileTask if destination is an ACID table.



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