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https://issues.apache.org/jira/browse/FLINK-6250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15984782#comment-15984782
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ASF GitHub Bot commented on FLINK-6250:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3771#discussion_r113446166
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/aggregate/AggregateUtil.scala
---
@@ -290,6 +295,10 @@ object AggregateUtil {
val aggMapping = aggregates.indices.toArray.map(_ + groupings.length)
val outputArity = aggregates.length + groupings.length + 1
+ // remove when distinct is supported
+ val distinctAggregatesFlags = new Array[Boolean](aggregates.size)
--- End diff --
`DataSet` has it's own way to deal with distinct aggregates. They could
also not initialize the state. So it is save to call `generateAggregations()`
with an empty array: `Array[Boolean]()` or we make the parameter an
`Option[Array[Boolean]]` and pass `None`
> Distinct procTime with Rows boundaries
> --------------------------------------
>
> Key: FLINK-6250
> URL: https://issues.apache.org/jira/browse/FLINK-6250
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: radu
> Assignee: Stefano Bortoli
>
> Support proctime with rows boundaries
> Q1.1. `SELECT SUM( DISTINCT b) OVER (ORDER BY procTime() ROWS BETWEEN 2
> PRECEDING AND CURRENT ROW) FROM stream1`
> Q1.1. `SELECT COUNT(b), SUM( DISTINCT b) OVER (ORDER BY procTime() ROWS
> BETWEEN 2 PRECEDING AND CURRENT ROW) FROM stream1`
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