ALTER TABLE "house"."listings" ADD COLUMN "address_key" text;--> statement-breakpoint
ALTER TABLE "house"."listings" ADD COLUMN "duplicate_of" integer;--> statement-breakpoint
ALTER TABLE "house"."listings" ADD COLUMN "total_price_eur" integer;--> statement-breakpoint
CREATE INDEX "listings_address_idx" ON "house"."listings" ("address_key") WHERE address_key IS NOT NULL;--> statement-breakpoint
ALTER TABLE "house"."listings" ADD CONSTRAINT "listings_duplicate_of_listings_id_fkey" FOREIGN KEY ("duplicate_of") REFERENCES "house"."listings"("id") ON DELETE SET NULL;