Hi  team,

Currently the SQL generated operator has all the same parallelism by
default, and we faced a issue that the in the case of multiple join, the
operator at later stage faces larger computation so that the overall
pipeline is back-presured and it causes checkpoint
fail(expired) occasionaly.

We want to know that if there is any way to customize the parallelism of
the SQL generated operators individually so that we can make their powers
match with their actual load to make operators' load evenly distributed.

Except to customize the parallelism of the operators, is there any other
suggested way to solve the problem and best practices for such multiple
joins? Thank you in advance.

-- 
*Best regards,*
*- Kai*

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