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Posted to dev@storm.apache.org by "Haohui Mai (JIRA)" <ji...@apache.org> on 2015/11/11 23:32:10 UTC

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

Haohui Mai created STORM-1200:
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             Summary: 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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