CREATE TABLE "materials" (
	"id" serial PRIMARY KEY NOT NULL,
	"item_code" varchar(100),
	"item_name" varchar(255) NOT NULL,
	"description" text,
	"parent_item_code" varchar(18),
	"item_level" integer,
	"delete_flag" varchar(1),
	"unit_of_measure" varchar(3),
	"steel_type" varchar(2),
	"grade_material" varchar(50),
	"change_date" varchar(8),
	"base_unit_of_measure" varchar(3),
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL,
	CONSTRAINT "materials_item_code_unique" UNIQUE("item_code")
);
--> statement-breakpoint
CREATE TABLE "vendor_possible_materials" (
	"id" serial PRIMARY KEY NOT NULL,
	"vendor_id" integer NOT NULL,
	"item_code" varchar(100) NOT NULL,
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL
);
--> statement-breakpoint
ALTER TABLE "vendor_possible_materials" ADD CONSTRAINT "vendor_possible_materials_vendor_id_vendors_id_fk" FOREIGN KEY ("vendor_id") REFERENCES "public"."vendors"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "vendor_possible_materials" ADD CONSTRAINT "vendor_possible_materials_item_code_materials_item_code_fk" FOREIGN KEY ("item_code") REFERENCES "public"."materials"("item_code") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
CREATE VIEW "public"."vendor_materials_view" AS (select "vendor_possible_materials"."id", "vendor_possible_materials"."vendor_id", "materials"."item_name", "materials"."item_code", "materials"."description", "vendor_possible_materials"."created_at", "vendor_possible_materials"."updated_at" from "vendor_possible_materials" left join "materials" on "vendor_possible_materials"."item_code" = "materials"."item_code");