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Posted to issues@flink.apache.org by "Timo Walther (JIRA)" <ji...@apache.org> on 2017/05/24 10:22:04 UTC

[jira] [Created] (FLINK-6697) Add batch multi-window support

Timo Walther created FLINK-6697:
-----------------------------------

             Summary: Add batch multi-window support
                 Key: FLINK-6697
                 URL: https://issues.apache.org/jira/browse/FLINK-6697
             Project: Flink
          Issue Type: Improvement
          Components: Table API & SQL
            Reporter: Timo Walther


Multiple consecutive windows on batch are not tested yet and I think they are also not supported yet, because the syntax is not defined for batch yet.

The following should be supported:
{code}
val t = table
    .window(Tumble over 2.millis on 'rowtime as 'w)
    .groupBy('w)
    .select('w.rowtime as 'rowtime, 'int.count as 'int)
    .window(Tumble over 4.millis on 'rowtime as 'w2)
    .groupBy('w2)
    .select('w2.rowtime, 'w2.end, 'int.count)
{code}



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