[jira] [Commented] (HIVE-5376) Hive does not honor type for partition columns when altering column type

["Chaoyu Tang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-5376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14485993#comment-14485993 ] 

Chaoyu Tang commented on HIVE-5376:
-----------------------------------

[~sershe] & [~hsubramaniyan] Could you elaborate the comment on
https://issues.apache.org/jira/browse/HIVE-5376?focusedCommentId=13960805&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13960805
I do not quite understand what the difficulty is to implement this JIRA at metastore site and why metastore needs QL. 
Thanks.

> Hive does not honor type for partition columns when altering column type
> ------------------------------------------------------------------------
>
>                 Key: HIVE-5376
>                 URL: https://issues.apache.org/jira/browse/HIVE-5376
>             Project: Hive
>          Issue Type: Bug
>          Components: CLI
>            Reporter: Sergey Shelukhin
>            Assignee: Hari Sankar Sivarama Subramaniyan
>             Fix For: 0.14.0
>
>         Attachments: HIVE-5376.1.patch, HIVE-5376.2.patch, HIVE-5376.3.patch
>
>
> Followup for HIVE-5297. If partition column of type string is changed to int, the data is not verified. The values for partition columns are all in metastore db, so it's easy to check and fail the type change.
> alter_partition_coltype.q (or some other test?) checks this behavior right now.



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