INSERT INTO users (id, email, username, password, is_admin, is_active, balance, created_at, updated_at)
SELECT
  'a0000000-0000-0000-0000-000000000001',
  '104776400@qq.com',
  'admin',
  '$2b$10$RdsEOAzIc95W5dDNKochnOflBZ.sVNroBQ8HT064UDgLcFKfljrWi',
  true,
  true,
  0,
  NOW(),
  NOW()
WHERE NOT EXISTS (
  SELECT 1 FROM users WHERE email = '104776400@qq.com'
);