Re: UPDATE run check constraints for affected columns only

Hi,

I reviewed and tested the v8 patch for skipping unnecessary CHECK
constraint verification during UPDATE.
I reproduced the existing behavior before applying the patch and
tested the behavior again after applying it.
My observations after applying the patch:
-CHECK constraints on unaffected columns are skipped during UPDATE.
-CHECK constraints related to updated columns continue to be verified.
-CHECK constraint violations are still detected correctly.
-Generated column cases behaved as expected.
-The BEFORE UPDATE trigger case behaved correctly.
-MERGE with UPDATE and INSERT actions also behaved as expected.
I reviewed the regression tests added in 001_constraint_validation.pl
for the UPDATE, MERGE, and trigger cases.
git diff --check completed without any issues.

Overall, I did not observe any issues during my testing and the patch
behaved as expected.

Regards,
solai