-- CreateTable
CREATE TABLE "purchase_orders" (
    "id" UUID NOT NULL,
    "vendor_id" UUID NOT NULL,
    "order_date" TIMESTAMPTZ(6) NOT NULL,
    "expected_date" TIMESTAMPTZ(6) NOT NULL,
    "received_at" TIMESTAMPTZ(6),
    "received_by" UUID,
    "created_at" TIMESTAMPTZ(6) NOT NULL DEFAULT CURRENT_TIMESTAMP,

    CONSTRAINT "purchase_orders_pkey" PRIMARY KEY ("id")
);

-- AddForeignKey
ALTER TABLE "purchase_orders" ADD CONSTRAINT "purchase_orders_vendor_id_fkey" FOREIGN KEY ("vendor_id") REFERENCES "vendors"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "purchase_orders" ADD CONSTRAINT "purchase_orders_received_by_fkey" FOREIGN KEY ("received_by") REFERENCES "employees"("id") ON DELETE SET NULL ON UPDATE CASCADE;