mysql bigint columns relational query loses precision

const products = await db.query.product.findMany({
    where: eq(product.active, true),
    with: {
      prices: {
        where: eq(price.productPriceType, productType),
      },
    },

export const bigintString = customType<{
  data: string;
  driverData: string;
  notNull: false;
  default: false;
}>({
  dataType() {
    return "bigint unsigned";
  },

  fromDriver(value): string {
    console.log("fromDriver input:", value, typeof value);
    return value.toString();
  },
});