godfreyhe commented on a change in pull request #9162:
[FLINK-13321][table-planner-blink] Fix bug in Blink Planner, Join a udf with
constant arguments or without argument in TableAPI query does not work now
URL: https://github.com/apache/flink/pull/9162#discussion_r305179186
##########
File path:
flink-table/flink-table-planner-blink/src/test/scala/org/apache/flink/table/runtime/stream/sql/CorrelateITCase.scala
##########
@@ -84,6 +84,30 @@ class CorrelateITCase extends StreamingTestBase {
assertEquals(expected.sorted, sink.getAppendResults.sorted)
}
+ @Test
+ def testConstantTableFunc(): Unit = {
+ tEnv.registerFunction("str_split", new StringSplit())
+ val query = "SELECT * FROM LATERAL TABLE(str_split()) as T0(d)"
+ val sink = new TestingAppendSink
+ tEnv.sqlQuery(query).toAppendStream[Row].addSink(sink)
+ env.execute()
+
+ val expected = List("a","b","c")
Review comment:
nit: add blank between`a,b,c`
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