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Posted to dev@storm.apache.org by "Haohui Mai (JIRA)" <ji...@apache.org> on 2015/11/25 20:37:11 UTC

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

     [ https://issues.apache.org/jira/browse/STORM-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Haohui Mai closed STORM-1200.
-----------------------------
    Resolution: Fixed

Thanks for the reviews and commits.

> 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.



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