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Posted to dev@hive.apache.org by "Namit Jain (JIRA)" <ji...@apache.org> on 2010/01/09 01:42:54 UTC

[jira] Resolved: (HIVE-1037) SerDe & ObjectInspector for RowContainer mismatch with the input data

     [ https://issues.apache.org/jira/browse/HIVE-1037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Namit Jain resolved HIVE-1037.
------------------------------

      Resolution: Fixed
    Hadoop Flags: [Reviewed]

Committed. Thanks Ning

> SerDe & ObjectInspector for RowContainer mismatch with the input data
> ---------------------------------------------------------------------
>
>                 Key: HIVE-1037
>                 URL: https://issues.apache.org/jira/browse/HIVE-1037
>             Project: Hadoop Hive
>          Issue Type: Bug
>            Reporter: Ning Zhang
>            Assignee: Ning Zhang
>            Priority: Blocker
>             Fix For: 0.5.0
>
>         Attachments: HIVE-1037.patch
>
>
> In CommonJoinOperator, RowContainer is created for each input table with the SerDe and ObjectInspector to serialize/deserialize that row to persistent storage. The serde/OI could be null in the case of the value columns are pruned by column pruner. An example query is
> select count(1) from A join B on A.key=B.key;
> Another case of mismatch is that the tableDesc was initialized at compile time before the column pruner take place. This could cause inconsistency in the SerDe/OI with the input data. This should be moved to execution time when the join operator is initialized. 

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