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sub2api/backend/migrations/132_affiliate_custom_settings.sql

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-- 邀请返利:用户专属配置增强
-- 1) aff_rebate_rate_percent: 用户作为邀请人时的专属返利比例百分比NULL 表示沿用全局比例)
-- 2) aff_code_custom: 标记当前 aff_code 是否被管理员手动改写过(用于"专属用户"列表筛选)
ALTER TABLE user_affiliates
ADD COLUMN IF NOT EXISTS aff_rebate_rate_percent DECIMAL(5,2);
ALTER TABLE user_affiliates
ADD COLUMN IF NOT EXISTS aff_code_custom BOOLEAN NOT NULL DEFAULT false;
CREATE INDEX IF NOT EXISTS idx_user_affiliates_admin_settings
ON user_affiliates (updated_at)
WHERE aff_code_custom = true OR aff_rebate_rate_percent IS NOT NULL;
COMMENT ON COLUMN user_affiliates.aff_rebate_rate_percent IS '专属返利比例(百分比 0-100NULL 表示沿用全局)';
COMMENT ON COLUMN user_affiliates.aff_code_custom IS '邀请码是否由管理员改写过(用于专属用户筛选)';