Condor <condor@xxxxxxxxxx> writes: > I'm using PostgreSQL 12.1 and trying to avoid update on table when data > is the same. I read somewhere if UPDATE is with the same data SQL server > on system level does not do update on table but don't know if that is > true or not. It is not, at least not for PG (can't say about SQL Server). But see suppress_redundant_updates_trigger here: https://www.postgresql.org/docs/current/functions-trigger.html regards, tom lane