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

Posted to dev@storm.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2015/11/23 20:24:11 UTC

[jira] [Commented] (STORM-1200) Support collations of primary keys

    [ https://issues.apache.org/jira/browse/STORM-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15022801#comment-15022801 ] 

ASF GitHub Bot commented on STORM-1200:
---------------------------------------

GitHub user haohui opened a pull request:

    https://github.com/apache/storm/pull/901

    STORM-1200. Support collations of primary keys.

    This PR allows users to specify collations on primary keys so that the query engines can use this as a hint when processing streaming aggregations.

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

    $ git pull https://github.com/haohui/storm STORM-1200

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

    https://github.com/apache/storm/pull/901.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 #901
    
----
commit e0c00ffbf55faa977e66e8aaced7c93861329bfb
Author: Haohui Mai <wh...@apache.org>
Date:   2015-11-11T22:23:14Z

    STORM-1200. Support collations of primary keys.

----


> Support collations of primary keys
> ----------------------------------
>
>                 Key: STORM-1200
>                 URL: https://issues.apache.org/jira/browse/STORM-1200
>             Project: Apache Storm
>          Issue Type: New Feature
>          Components: storm-sql
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>
> This jira proposes to add support of specifying collations of primary keys. Collations provide information on uniqueness and monotonicity of columns. The information is essential to implement aggregation functions over streaming data.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)