SET NAMES utf8mb4 COLLATE utf8mb4_unicode_ci;

USE hyapp_user;

SET @ddl := IF(
  (SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'manager_profiles' AND COLUMN_NAME = 'can_grant_vip') = 0,
  'ALTER TABLE manager_profiles ADD COLUMN can_grant_vip TINYINT(1) NOT NULL DEFAULT 1 COMMENT ''是否允许在经理中心赠送 VIP'' AFTER can_grant_badge',
  'SELECT 1'
);
PREPARE stmt FROM @ddl;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;