Commits

Date	Subject	Author	Releases
2026-06-27	doc: Clarify ALTER CONSTRAINT enforceability behavior	Andrew Dunstan	19 (unreleased)
2026-03-11	Add support for altering CHECK constraint enforceability	Andrew Dunstan	19 (unreleased)
2018-03-28	Fast ALTER TABLE ADD COLUMN with a non-NULL default	Andrew Dunstan	11.0
2015-07-30	Add IF NOT EXISTS processing to ALTER TABLE ADD COLUMN	Andrew Dunstan	9.6.0
2009-07-20	DROP IF EXISTS for columns and constraints. Andres Freund.	Andrew Dunstan	9.0.0