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https://issues.apache.org/jira/browse/FLINK-5315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16585964#comment-16585964
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ASF GitHub Bot commented on FLINK-5315:
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fhueske commented on a change in pull request #6521: [FLINK-5315][table] Adding
support for distinct operation for table API on DataStream
URL: https://github.com/apache/flink/pull/6521#discussion_r211250312
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File path:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/stream/table/validation/AggregateValidationTest.scala
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@@ -21,11 +21,33 @@ package org.apache.flink.table.api.stream.table.validation
import org.apache.flink.api.scala._
import org.apache.flink.table.api.ValidationException
import org.apache.flink.table.api.scala._
+import
org.apache.flink.table.runtime.utils.JavaUserDefinedAggFunctions.WeightedAvg
import org.apache.flink.table.utils.TableTestBase
import org.junit.Test
class AggregateValidationTest extends TableTestBase {
Review comment:
Add validation tests for Java API (distinct on non aggregation function
calls (fields or scalar functions)
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> Support distinct aggregations in table api
> ------------------------------------------
>
> Key: FLINK-5315
> URL: https://issues.apache.org/jira/browse/FLINK-5315
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Kurt Young
> Assignee: Rong Rong
> Priority: Major
> Labels: pull-request-available
>
> Support distinct aggregations in Table API in the following format:
> For Expressions:
> {code:scala}
> 'a.count.distinct // Expressions distinct modifier
> {code}
> For User-defined Function:
> {code:scala}
> singleArgUdaggFunc.distinct('a) // FunctionCall distinct modifier
> multiArgUdaggFunc.distinct('a, 'b) // FunctionCall distinct modifier
> {code}
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