text: ALTER TABLE billing_estimates CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
  ALTER TABLE billing_estimates DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
  ALTER TABLE billing_estimate_positions CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
  ALTER TABLE billing_estimate_positions DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
  