Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4842#discussion_r145260250
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/stream/table/CorrelateTest.scala
---
@@ -99,6 +104,21 @@ class CorrelateTest extends TableTestBase {
util.verifyTable(result, expected)
}
+ /**
+ * Due to the improper translation of TableFunction left outer join
(see CALCITE-2004), the
+ * join predicates can only be empty or literal true.
+ */
+ @Test (expected = classOf[ValidationException])
--- End diff --
move this test method to `validate.CorrelateValidationTest`.
---