CREATE TABLE IF NOT EXISTS "audit_log" ( "id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL, "user_id" uuid, "action" text NOT NULL, "resource_type" text, "resource_id" text, "metadata" text, "created_at" timestamp DEFAULT now() NOT NULL ); --> statement-breakpoint DO $$ BEGIN ALTER TABLE "audit_log" ADD CONSTRAINT "audit_log_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."users"("id") ON DELETE no action ON UPDATE no action; EXCEPTION WHEN duplicate_object THEN null; END $$;