CREATE TABLE "pcr_po" ( "id" serial PRIMARY KEY NOT NULL, "vendor_id" integer, "pcr_approval_status" varchar(20) DEFAULT 'PENDING', "change_type" varchar(20) DEFAULT 'OTHER', "details" text, "project" varchar(255), "pcr_request_date" date NOT NULL, "po_contract_number" varchar(100) NOT NULL, "rev_item_number" varchar(100), "purchase_contract_manager" varchar(100), "pcr_creator" varchar(100), "po_contract_amount_before" numeric(15, 2), "po_contract_amount_after" numeric(15, 2), "contract_currency" varchar(10) DEFAULT 'KRW', "pcr_reason" text, "details_reason" text, "rejection_reason" text, "pcr_response_date" date, "created_by" integer NOT NULL, "updated_by" integer NOT NULL, "created_at" timestamp DEFAULT now() NOT NULL, "updated_at" timestamp DEFAULT now() NOT NULL ); --> statement-breakpoint CREATE TABLE "pcr_pr" ( "id" serial PRIMARY KEY NOT NULL, "material_number" varchar(100) NOT NULL, "material_details" text, "quantity_before" numeric(12, 3), "quantity_after" numeric(12, 3), "weight_before" numeric(12, 3), "weight_after" numeric(12, 3), "subcontractor_weight_before" numeric(12, 3), "subcontractor_weight_after" numeric(12, 3), "supplier_weight_before" numeric(12, 3), "supplier_weight_after" numeric(12, 3), "spec_drawing_before" text, "spec_drawing_after" text, "initial_po_contract_date" date, "spec_change_date" date, "po_contract_modified_date" date, "confirmation_date" date, "design_manager" varchar(100), "po_contract_number" varchar(100) NOT NULL, "created_by" integer NOT NULL, "updated_by" integer NOT NULL, "created_at" timestamp DEFAULT now() NOT NULL, "updated_at" timestamp DEFAULT now() NOT NULL ); --> statement-breakpoint ALTER TABLE "pcr_po" ADD CONSTRAINT "pcr_po_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 "pcr_po" ADD CONSTRAINT "pcr_po_created_by_users_id_fk" FOREIGN KEY ("created_by") REFERENCES "public"."users"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint ALTER TABLE "pcr_po" ADD CONSTRAINT "pcr_po_updated_by_users_id_fk" FOREIGN KEY ("updated_by") REFERENCES "public"."users"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint ALTER TABLE "pcr_pr" ADD CONSTRAINT "pcr_pr_created_by_users_id_fk" FOREIGN KEY ("created_by") REFERENCES "public"."users"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint ALTER TABLE "pcr_pr" ADD CONSTRAINT "pcr_pr_updated_by_users_id_fk" FOREIGN KEY ("updated_by") REFERENCES "public"."users"("id") ON DELETE set null ON UPDATE no action;--> statement-breakpoint CREATE INDEX "pcr_po_po_contract_number_idx" ON "pcr_po" USING btree ("po_contract_number");--> statement-breakpoint CREATE INDEX "pcr_po_vendor_id_idx" ON "pcr_po" USING btree ("vendor_id");--> statement-breakpoint CREATE INDEX "pcr_po_approval_status_idx" ON "pcr_po" USING btree ("pcr_approval_status");--> statement-breakpoint CREATE INDEX "pcr_po_created_at_idx" ON "pcr_po" USING btree ("created_at");--> statement-breakpoint CREATE INDEX "pcr_pr_po_contract_number_idx" ON "pcr_pr" USING btree ("po_contract_number");--> statement-breakpoint CREATE INDEX "pcr_pr_material_number_idx" ON "pcr_pr" USING btree ("material_number");--> statement-breakpoint CREATE INDEX "pcr_pr_created_at_idx" ON "pcr_pr" USING btree ("created_at");