Github user suez1224 commented on a diff in the pull request: https://github.com/apache/flink/pull/5367#discussion_r165515039 --- Diff: flink-libraries/flink-table/src/test/scala/org/apache/flink/table/runtime/stream/sql/SqlITCase.scala --- @@ -469,6 +473,148 @@ class SqlITCase extends StreamingWithStateTestBase { assertEquals(expected.sorted, StreamITCase.testResults.sorted) } + @Test + def testArrayElementAtFromTableForTuple(): Unit = { + + val env = StreamExecutionEnvironment.getExecutionEnvironment + val tEnv = TableEnvironment.getTableEnvironment(env) + StreamITCase.clear + + val data = List( + (1, Array((12, 45), (2, 5))), --- End diff -- Added null check. for nested tuple input, it wont work for now due to https://issues.apache.org/jira/browse/CALCITE-2162. I've submitted a fix to it, should be available in Calcite 1.16.
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