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https://issues.apache.org/jira/browse/STORM-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15023628#comment-15023628
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ASF GitHub Bot commented on STORM-1200:
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Github user harshach commented on the pull request:
https://github.com/apache/storm/pull/901#issuecomment-159134464
+1
> 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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