Hey team, We are migrating our Flink codes from Flink-1.9 to Flink-1.14 and as a part of this, we are updating a bunch of UDFs. Wanted to understand, how to provide *data type hints for the UDFs which return Object[]*.
For example, if the return type is simply Object something like this works. *@DataTypeHint(inputGroup = InputGroup.ANY)* But could not find any examples on how to add type hints in case of an eval function returning Object[]. If we explicitly, return something like List<Object> instead of providing type hints works, but this might cause issues downstream since lots of running jobs currently use in-built UDFs like `*Cardinality*` on the result of the UDFs which fails if the return type is List<Object>. Thanks in advance. //arujit
