SET NAMES utf8mb4;

CREATE TABLE IF NOT EXISTS api_rate_limits (
  bucket_key BINARY(32) NOT NULL,
  action_name VARCHAR(40) NOT NULL,
  hits INT UNSIGNED NOT NULL DEFAULT 1,
  expires_at DATETIME(3) NOT NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  updated_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3),
  PRIMARY KEY (bucket_key),
  KEY idx_rate_limit_expires (expires_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;