ALTER TABLE "deliveries" DROP CONSTRAINT "deliveries_channel_account_id_publishing_channel_accounts_id_fk"; --> statement-breakpoint ALTER TABLE "deliveries" ADD CONSTRAINT "deliveries_channel_account_id_publishing_channel_accounts_id_fk" FOREIGN KEY ("channel_account_id") REFERENCES "public"."publishing_channel_accounts"("id") ON DELETE set null ON UPDATE no action;