> On Oct 26, 2021, at 4:01 PM, Michael Lewis <mlewis@xxxxxxxxxxx> wrote: > > Does this perform differently from suppress_redundant_updates_trigger? > > https://www.postgresql.org/docs/current/functions-trigger.html If Mitar finds that suppress_redundant_updates_trigger is sufficient, that may be a simpler solution. Thanks for mentioning it. The suppress_redundant_updates_trigger uses memcmp on the old and new rows. I don't know if memcmp will be sufficient in this case, since json can be binary unequal and yet turn out to be equal once cast to jsonb. I was using the rule and casting the json column to jsonb before comparing for equality. — Mark Dilger EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company