waywtdcc created FLINK-23328:
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Summary: UDF Improvement
Key: FLINK-23328
URL: https://issues.apache.org/jira/browse/FLINK-23328
Project: Flink
Issue Type: Improvement
Components: Table SQL / API
Affects Versions: 1.12.2
Reporter: waywtdcc
Would you like to ask if you can add a field to the input stream with sql, this
field represents the number of occurrences of the current value of a field? I
hope that SQL can be more extensible, support keyby plus custom udf, and udf
can access state in the same way as keyedprocessonfunction
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