tsreaper commented on a change in pull request #17845:
URL: https://github.com/apache/flink/pull/17845#discussion_r754754304
##########
File path:
flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/planner/plan/stream/sql/join/LookupJoinTest.scala
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@@ -525,7 +525,21 @@ class LookupJoinTest(legacyTableSource: Boolean) extends
TableTestBase with Seri
verifyTranslationSuccess(sql)
}
- //
==========================================================================================
+ @Test
+ def testJoinTemporalTableWithCTE(): Unit = {
+ val sql =
+ """
+ |WITH MyLookupTable AS (SELECT * FROM MyTable),
+ |OtherLookupTable AS (SELECT * FROM LookupTable)
+ |SELECT MyLookupTable.b FROM MyLookupTable
+ |JOIN OtherLookupTable FOR SYSTEM_TIME AS OF MyLookupTable.proctime AS
D
+ |ON MyLookupTable.a = D.id AND D.age = 10
+ """.stripMargin
+
+ verifyTranslationSuccess(sql)
Review comment:
I would recommend `util.verifyExecPlan` so that we can compare the exact
plan in the future.
Note that to use this checking method, you'll have to first remove the
corresponding LookupJoinTest.xml file of this test then run the whole test
class. You'll find that a new LookupJoinTest.xml is generated and then git will
show you what is added to the new LookupJoinTest.xml. Make sure that the added
plan meets your expectation.
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