Sachin Kotwal <> writes:
> Does it release locks after taking decision and then perform actual update
> operation on partition table?

No, there's no attempt to do that, and we're unlikely to consider doing so
because it would result in more lock-table thrashing.  Why do you care?
RowExclusiveLock does not block any normal DML operation, so there's no
apparent benefit from releasing it early.

                        regards, tom lane

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