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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-5700) enforce single date format for partition column storage
Date Thu, 07 Nov 2013 04:34:18 GMT

     [ https://issues.apache.org/jira/browse/HIVE-5700?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin updated HIVE-5700:
-----------------------------------

    Attachment: HIVE-5700.patch

preliminary patch. There's one unresolved comment for myself, I haven't fully groked the insert
processing yet, need to avoid normalizing if partition with "wrong" date format already exists
for insert overwrite. But insert code path is rather convoluted. [~ashutoshc] can you take
a look? This approach may allow us to use string compares for dates and not depend on data
stores converting arbitrary strings accepted by java.
Otherwise I don't think date pushdown into SQL is really viable/robust enough.

> enforce single date format for partition column storage
> -------------------------------------------------------
>
>                 Key: HIVE-5700
>                 URL: https://issues.apache.org/jira/browse/HIVE-5700
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Sergey Shelukhin
>         Attachments: HIVE-5700.patch
>
>
> "inspired" by HIVE-5286.
> Partition column for dates should be stored as either integer, or as fixed representation
e.g. yyyy-mm-dd. External representation can remain varied as is.



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