Hi,
Currently, When I was using a lot of the same udf in a sql, I can't locate 
where the semantic occor if some udf being used in a wrong way. So I try to 
change some code in flink-table-common and flink-table-runtime-blink to extract 
more detail information such as position and sql context in the exception 
creating function.
The flink version is 1.13


How can I feedback this feature to communicaty ?

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