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Posted to issues@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2018/10/04 07:21:00 UTC

[jira] [Created] (FLINK-10488) Add DISTINCT operator for streaming tables that leverages time attributes

Fabian Hueske created FLINK-10488:
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             Summary: Add DISTINCT operator for streaming tables that leverages time attributes
                 Key: FLINK-10488
                 URL: https://issues.apache.org/jira/browse/FLINK-10488
             Project: Flink
          Issue Type: Improvement
          Components: Table API &amp; SQL
            Reporter: Fabian Hueske


We can add a special DISTINCT operator that leverages time attributes and thereby avoids materializing the complete input table.

This operator can also be used to evaluate UNION by rewriting UNION to UNION ALL + DISTINCT.



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