slinkydeveloper commented on a change in pull request #18524:
URL: https://github.com/apache/flink/pull/18524#discussion_r810884028
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File path:
flink-table/flink-table-common/src/main/java/org/apache/flink/table/types/logical/utils/LogicalTypeCasts.java
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@@ -318,11 +318,17 @@ private static boolean supportsCasting(
// cast between interval and exact numeric is only supported if
interval has a single
// field
return isSingleFieldInterval(targetType);
+ } else if ((sourceType.is(CONSTRUCTED) ||
sourceType.is(STRUCTURED_TYPE))
+ && targetType.is(CHARACTER_STRING)) {
+ return supportsCollectionAndStructuredToStringCasting(sourceType,
allowExplicit);
Review comment:
We don't have any at the moment, at least looking at the matrix I wrote
here https://github.com/apache/flink/pull/18813. Nevertheless, isn't it better
to keep this code to avoid eventual future bugs with new types?
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