DO $$ BEGIN CREATE TYPE "bookType" AS ENUM('shonen', 'seinen', 'manhua'); EXCEPTION WHEN duplicate_object THEN null; END $$; --> statement-breakpoint DO $$ BEGIN CREATE TYPE "roleEnum" AS ENUM('Member', 'Admin'); EXCEPTION WHEN duplicate_object THEN null; END $$; --> statement-breakpoint ALTER TABLE "users" ADD COLUMN "role" "roleEnum" DEFAULT 'Member' NOT NULL;