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From "Namit Jain (JIRA)" <>
Subject [jira] [Updated] (HIVE-933) Infer bucketing/sorting properties
Date Wed, 30 Jan 2013 04:21:15 GMT


Namit Jain updated HIVE-933:

       Resolution: Fixed
    Fix Version/s: 0.11.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

Committed. Thanks Kevin
> Infer bucketing/sorting properties
> ----------------------------------
>                 Key: HIVE-933
>                 URL:
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Kevin Wilfong
>             Fix For: 0.11.0
>         Attachments: HIVE-933.10.patch.txt, HIVE-933.11.patch.txt, HIVE-933.12.patch.txt,
HIVE-933.13.patch.txt, HIVE-933.1.patch.txt, HIVE-933.2.patch.txt, HIVE-933.3.patch.txt, HIVE-933.4.patch.txt,
HIVE-933.5.patch.txt, HIVE-933.6.patch.txt, HIVE-933.7.patch.txt, HIVE-933.8.patch.txt, HIVE-933.9.patch.txt
> This is a long-term plan, and may require major changes.
> From the query, we can figure out the sorting/bucketing properties, and change the metadata
of the destination at that time.
> However, this means that different partitions may have different metadata. Currently,
the query plan is same for all the 
> partitions of the table - we can do the following:
> 1. In the first cut, have a simple approach where you take the union all metadata, and
create the most defensive plan.
> 2. Enhance mapredWork() to include partition specific operator trees.

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