CREATE TABLE "items" ( "id" serial PRIMARY KEY NOT NULL, "item_code" varchar(100) PRIMARY KEY NOT NULL, "item_name" varchar(255) NOT NULL, "description" text, "created_at" timestamp DEFAULT now() NOT NULL, "updated_at" timestamp DEFAULT now() NOT NULL ); --> statement-breakpoint ALTER TABLE "vendor_possible_items" ALTER COLUMN "item_code" SET NOT NULL;--> statement-breakpoint ALTER TABLE "rfq_items" ADD CONSTRAINT "rfq_items_item_code_items_item_code_fk" FOREIGN KEY ("item_code") REFERENCES "public"."items"("item_code") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint ALTER TABLE "vendor_possible_items" ADD CONSTRAINT "vendor_possible_items_item_code_items_item_code_fk" FOREIGN KEY ("item_code") REFERENCES "public"."items"("item_code") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint ALTER TABLE "rfq_items" DROP COLUMN "item_name";--> statement-breakpoint ALTER TABLE "vendor_possible_items" DROP COLUMN "item_name";