How to use the bigint.unsigned.handling.mode parameter in a Paimon Flink run or Flink CDC pipeline to avoid converting bigint unsigned values to decimal?

[songsh2]

The source field is of type bigint unsigned, but when it is written to Paimon by MySQL CDC, it is automatically converted to decimal(20, 0).

I added --mysql_conf bigint.unsigned.handling.mode=long to the Flink run statement, but it did not work.
If I added bigint.unsigned.handling.mode: long to Flink CDC Pipeline yaml，it did not start.

Reference: GitHub Discussion

[Pluto201]

what version are you using ?

[songsh2]

flink 1.8
flinkcdc 3.1