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https://issues.apache.org/jira/browse/FLINK-5514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu closed FLINK-5514.
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Assignee: (was: godfrey he)
Resolution: Implemented
Implemented during blink merge.
> Implement an efficient physical execution for CUBE/ROLLUP/GROUPING SETS
> -----------------------------------------------------------------------
>
> Key: FLINK-5514
> URL: https://issues.apache.org/jira/browse/FLINK-5514
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Timo Walther
> Priority: Major
> Labels: pull-request-available, stale-assigned
> Time Spent: 10m
> Remaining Estimate: 0h
>
> A first support for GROUPING SETS has been added in FLINK-5303. However, the
> current runtime implementation is not very efficient as it basically only
> translates logical operators to physical operators i.e. grouping sets are
> currently only translated into multiple groupings that are unioned together.
> A rough design document for this has been created in FLINK-2980.
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