On 6/28/18 22:52, Alvaro Herrera wrote: >> Couldn't psql chase the pg_depend links to find inherited triggers? > > Yeah, I thought this would be exceedingly ugly, but apparently it's not > *that* bad -- see the attached patch, which relies on the fact that > triggers don't otherwise depend on other triggers. We don't use this > technique elsewhere in psql though.
Yeah, relying on pg_depend to detect relationships between catalog objects is a bit evil. We do use this for detecting sequences linked to tables, which also has its share of problems. Ideally, there would be a column in pg_trigger, perhaps, that makes this link explicit. But we are looking here for a solution without catalog changes, I believe. -- Peter Eisentraut http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
