slinkydeveloper commented on a change in pull request #17522:
URL: https://github.com/apache/flink/pull/17522#discussion_r737454676
##########
File path:
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/functions/CastFunctionITCase.java
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@@ -875,6 +876,27 @@ protected Configuration configuration() {
// single type
// .fromCase(INT(), 10, new int[] {10})
.fromCase(ARRAY(INT()), new int[] {1, 2, 3}, new
Integer[] {1, 2, 3})
+ .build(),
+ CastTestSpecBuilder.testCastTo(ARRAY(STRING().nullable()))
Review comment:
I would not tbh, because "collection" types also includes map, which we
don't support here.
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