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https://issues.apache.org/jira/browse/FLINK-10976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16718452#comment-16718452
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ASF GitHub Bot commented on FLINK-10976:
----------------------------------------
hequn8128 commented on a change in pull request #7235: [FLINK-10976] [table]
Add support for aggregate to table API
URL: https://github.com/apache/flink/pull/7235#discussion_r240877626
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File path:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/batch/table/validation/AggregateValidationTest.scala
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@@ -208,4 +208,58 @@ class AggregateValidationTest extends TableTestBase {
// must fail. UDAGG does not accept String type
.select("myWeightedAvg(c, a)")
}
+
Review comment:
Add a test to validate aggregate with two aggregate functions?
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> Add Aggregate operator to Table API
> -----------------------------------
>
> Key: FLINK-10976
> URL: https://issues.apache.org/jira/browse/FLINK-10976
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: sunjincheng
> Assignee: Dian Fu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.8.0
>
>
> Add Aggregate operator to Table API as described in [Google
> doc|https://docs.google.com/document/d/1tnpxg31EQz2-MEzSotwFzqatsB4rNLz0I-l_vPa5H4Q/edit#heading=h.q23rny2iglsr].
> The usage:
> {code:java}
> val res = tab
> .groupBy('a) // leave out groupBy-clause to define global aggregates
> .agg(fun: AggregateFunction) // output has columns 'a, 'b, 'c
> .select('a, 'c)
> {code}
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