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https://issues.apache.org/jira/browse/FLINK-4600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15473447#comment-15473447
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Timo Walther commented on FLINK-4600:
-------------------------------------
Go for it :)
This issue requires some changes in
"org.apache.flink.api.table.runtime.aggregate.AggregateUtil#transformToAggregateFunctions",
"org.apache.flink.api.table.runtime.aggregate.MaxAggragate.scala" and tests.
The intermediate results might work on primitive types to reduce object
creations.
> Support min/max aggregations for Date/Time/Timestamp/Intervals
> --------------------------------------------------------------
>
> Key: FLINK-4600
> URL: https://issues.apache.org/jira/browse/FLINK-4600
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: Leo Deng
>
> Currently no aggregation supports temporal types. At least min/max should be
> added for Date/Time/Timestamp/Intervals.
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