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Posted to dev@flink.apache.org by "Shaoxuan Wang (JIRA)" <ji...@apache.org> on 2017/02/25 06:14:44 UTC

[jira] [Created] (FLINK-5915) Add support for the aggregate on multi fields

Shaoxuan Wang created FLINK-5915:
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             Summary: Add support for the aggregate on multi fields
                 Key: FLINK-5915
                 URL: https://issues.apache.org/jira/browse/FLINK-5915
             Project: Flink
          Issue Type: Sub-task
            Reporter: Shaoxuan Wang
            Assignee: Shaoxuan Wang


some UDAGGs have multi-fields as input. For instance,
table
.window(Tumble over 10.minutes on 'rowtime as 'w )
.groupBy('key, 'w)
.select('key, weightedAvg('value, 'weight))

This task will add the support for the aggregate on multi fields.



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