CREATE TABLE "ship_upgrades" ( "ship_id" text NOT NULL, "upgrade_id" text NOT NULL, "level" integer NOT NULL, CONSTRAINT "ship_upgrades_ship_id_upgrade_id_pk" PRIMARY KEY("ship_id","upgrade_id") ); --> statement-breakpoint ALTER TABLE "ships" ADD COLUMN "in_shop_until" bigint;--> statement-breakpoint ALTER TABLE "ships" ADD COLUMN "shop_upgrade_id" text;--> statement-breakpoint ALTER TABLE "ships" ADD COLUMN "shop_level" integer;--> statement-breakpoint ALTER TABLE "ship_upgrades" ADD CONSTRAINT "ship_upgrades_ship_id_ships_id_fk" FOREIGN KEY ("ship_id") REFERENCES "public"."ships"("id") ON DELETE cascade ON UPDATE no action;