[jira] [Commented] (QUICKSTEP-73) Multi-attribute PartitionSchemeHeader

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/QUICKSTEP-73?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15931196#comment-15931196 ] 

ASF GitHub Bot commented on QUICKSTEP-73:
-----------------------------------------

GitHub user zuyu opened a pull request:

    https://github.com/apache/incubator-quickstep/pull/217

    QUICKSTEP-73: Multi-attribute PartitionSchemeHeader.

    This PR added multi-attribute partitions support.
    
    ```
    CREATE TABLE foo5 (attr1 INT, attr2 LONG, attr3 FLOAT, attr4 DOUBLE, attr5 CHAR(5),
                       attr6 VARCHAR(4))
    PARTITION BY HASH(attr1, attr2, attr3, attr4, attr5, attr6) PARTITIONS 4;
    ```

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/zuyu/incubator-quickstep multi-attr-partition

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/incubator-quickstep/pull/217.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #217
    
----
commit 02d0a3b5b6676ffb1ea7cc3d19b232291d8f6323
Author: Zuyu Zhang <zu...@apache.org>
Date:   2017-03-18T10:28:38Z

    QUICKSTEP-73: Multi-attribute PartitionSchemeHeader.

----


> Multi-attribute PartitionSchemeHeader
> -------------------------------------
>
>                 Key: QUICKSTEP-73
>                 URL: https://issues.apache.org/jira/browse/QUICKSTEP-73
>             Project: Apache Quickstep
>          Issue Type: Improvement
>          Components: Catalog
>            Reporter: Zuyu Zhang
>            Assignee: Zuyu Zhang
>
> Currently, Quickstep only supports single-attribute Partition. For performance reasons, we need multi-attribute version for hash joins w/ multi-join-attributes.



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