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https://issues.apache.org/jira/browse/FLINK-4565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110793#comment-16110793
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ASF GitHub Bot commented on FLINK-4565:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4404#discussion_r130859202
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/batch/table/SetOperatorsITCase.scala
---
@@ -225,4 +227,62 @@ class SetOperatorsITCase(
val expected = "2,1,Hi\n" + "3,2,Hello\n" + "4,2,Hello world\n"
TestBaseUtils.compareResultAsText(results.asJava, expected)
}
+
+ @Test
+ def testInWithFilter(): Unit = {
--- End diff --
These runtime tests could also be replaced by plan tests, IMO.
> Support for SQL IN operator
> ---------------------------
>
> Key: FLINK-4565
> URL: https://issues.apache.org/jira/browse/FLINK-4565
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Timo Walther
> Assignee: Timo Walther
>
> It seems that Flink SQL supports the uncorrelated sub-query IN operator. But
> it should also be available in the Table API and tested.
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