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https://issues.apache.org/jira/browse/FLINK-21253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17277865#comment-17277865
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Jark Wu commented on FLINK-21253:
---------------------------------
I would recommend to support this feature with the new window syntax (the
FLIP-145), because it would be much easier when the grouped window becomes
physical columns.
> Support grouping set syntax in WindowAggregate
> ----------------------------------------------
>
> Key: FLINK-21253
> URL: https://issues.apache.org/jira/browse/FLINK-21253
> Project: Flink
> Issue Type: New Feature
> Components: Table SQL / Planner
> Reporter: Andy
> Priority: Major
>
> Support grouping set/cube/rollup syntax in WindowAggregate, like the
> following example.
>
> {code:java}
> //代码占位符
> SELECT
> a,
> TUMBLE_START(rowtime, INTERVAL '15' MINUTE),
> TUMBLE_END(rowtime, INTERVAL '15' MINUTE),
> COUNT(1)
> FROM MyTable
> GROUP BY GROUPING SETS (`a`, ()), TUMBLE(rowtime, INTERVAL '15' MINUTE)
> {code}
>
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