You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@hive.apache.org by "Namit Jain (Created) (JIRA)" <ji...@apache.org> on 2012/03/07 02:37:57 UTC

[jira] [Created] (HIVE-2846) Enhance bucketing and sorting support in hive

Enhance bucketing and sorting support in hive
---------------------------------------------

                 Key: HIVE-2846
                 URL: https://issues.apache.org/jira/browse/HIVE-2846
             Project: Hive
          Issue Type: New Feature
            Reporter: Namit Jain


This task consists of a couple of sub-tasks.
1. Removing the map-join hint completely. Moving all processing to runtime. Currently, bucketed map joins and sort merge joins are completely
driven off hints.
2. Create a performance suite for performance for bucketed map-joins for different scenarios: the big table has many buckets, whereas the small table has fewer buckets etc.
3. Infer bucketing and sorting from the user query, and store that in the metastore. This can be used for follow-up queries on those outputs.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira