ALTER TABLE "items" ADD COLUMN "parent_item_code" varchar(18);--> statement-breakpoint
ALTER TABLE "items" ADD COLUMN "item_level" integer;--> statement-breakpoint
ALTER TABLE "items" ADD COLUMN "delete_flag" varchar(1);--> statement-breakpoint
ALTER TABLE "items" ADD COLUMN "unit_of_measure" varchar(3);--> statement-breakpoint
ALTER TABLE "items" ADD COLUMN "steel_type" varchar(2);--> statement-breakpoint
ALTER TABLE "items" ADD COLUMN "grade_material" varchar(50);--> statement-breakpoint
ALTER TABLE "items" ADD COLUMN "change_date" varchar(8);--> statement-breakpoint
ALTER TABLE "items" ADD COLUMN "base_unit_of_measure" varchar(3);