Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4404#discussion_r130858415
--- 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 --
Add `stringexpr` tests to validate equivalence of Scala expression and Java
String Table API.
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