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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3833) object inspectors should be initialized based on partition metadata
Date Tue, 22 Jan 2013 08:52:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559487#comment-13559487
] 

Ashutosh Chauhan commented on HIVE-3833:
----------------------------------------

Comments on phabricator.
  * I have made bunch of requests to rename functions, feel free to use better names than
what I suggested if you feel like.
  * I have not reviewed the new tests that you have added. I assume you have verified those.
  * pm.retrieveAll() change in ObjectStore() is of concern to me. If the comments I made there
are valid, please take time to see if we can do something better there.
                
> object inspectors should be initialized based on partition metadata
> -------------------------------------------------------------------
>
>                 Key: HIVE-3833
>                 URL: https://issues.apache.org/jira/browse/HIVE-3833
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Namit Jain
>         Attachments: hive.3833.10.patch, hive.3833.11.patch, hive.3833.12.patch, hive.3833.13.patch,
hive.3833.14.patch, hive.3833.16.path, hive.3833.17.patch, hive.3833.1.patch, hive.3833.2.patch,
hive.3833.3.patch, hive.3833.4.patch, hive.3833.5.patch, hive.3833.6.patch, hive.3833.7.patch,
hive.3833.8.patch, hive.3833.9.patch
>
>
> Currently, different partitions can be picked up for the same input split based on the
> serdes' etc. And, we dont allow to change the schema for LazyColumnarBinarySerDe.
> Instead of that, different partitions should be part of the same split, only if the
> partition schemas exactly match. The operator tree object inspectors should be based
> on the partition schema. That would give greater flexibility and also help using binary
serde with rcfile

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