109 lines
3.4 KiB
SQL
109 lines
3.4 KiB
SQL
-- ============================================================
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-- 删除 users.referred_by 冗余字段
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-- 优化绑定关系存储，只使用 referral_bindings 表
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-- ============================================================
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-- 使用数据库
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USE soul_miniprogram;
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-- ============================================================
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-- 步骤1: 备份 referred_by 数据
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-- ============================================================
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DROP TABLE IF EXISTS users_referred_by_backup;
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CREATE TABLE users_referred_by_backup AS
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SELECT id, referred_by, created_at
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FROM users
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WHERE referred_by IS NOT NULL;
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-- 查看备份统计
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SELECT
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COUNT(*) as '备份记录数',
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COUNT(DISTINCT referred_by) as '唯一推荐人数'
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FROM users_referred_by_backup;
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-- ============================================================
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-- 步骤2: 验证 referral_bindings 数据完整性
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-- ============================================================
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-- 检查绑定表统计
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SELECT
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COUNT(*) as '总绑定记录',
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COUNT(DISTINCT referee_id) as '唯一被推荐人',
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SUM(CASE WHEN status = 'active' THEN 1 ELSE 0 END) as '当前活跃绑定'
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FROM referral_bindings;
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-- 检查数据一致性（找出在users中有referred_by但在bindings中没有记录的用户）
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SELECT COUNT(*) as '不一致记录数' FROM users u
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WHERE u.referred_by IS NOT NULL
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AND NOT EXISTS (
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SELECT 1 FROM referral_bindings rb
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WHERE rb.referee_id = u.id
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);
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-- ============================================================
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-- 步骤3: 删除 referred_by 索引
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-- ============================================================
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-- 检查索引是否存在
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SELECT
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INDEX_NAME,
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COLUMN_NAME,
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SEQ_IN_INDEX
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FROM information_schema.statistics
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WHERE table_schema = 'soul_miniprogram'
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AND table_name = 'users'
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AND index_name = 'idx_referred_by';
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-- 删除索引（如果存在）
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ALTER TABLE users DROP INDEX IF EXISTS idx_referred_by;
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-- ============================================================
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-- 步骤4: 删除 referred_by 字段
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-- ============================================================
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-- 检查字段是否存在
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SELECT
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COLUMN_NAME,
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COLUMN_TYPE,
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IS_NULLABLE
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FROM information_schema.columns
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WHERE table_schema = 'soul_miniprogram'
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AND table_name = 'users'
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AND column_name = 'referred_by';
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-- 删除字段
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ALTER TABLE users DROP COLUMN referred_by;
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-- ============================================================
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-- 步骤5: 验证删除结果
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-- ============================================================
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-- 验证字段已删除
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SELECT COUNT(*) as '字段是否仍存在（应为0）'
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FROM information_schema.columns
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WHERE table_schema = 'soul_miniprogram'
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AND table_name = 'users'
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AND column_name = 'referred_by';
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-- 验证备份表
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SELECT COUNT(*) as '备份记录数' FROM users_referred_by_backup;
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-- ============================================================
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-- 完成！
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-- ============================================================
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-- 查看users表当前结构
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SHOW COLUMNS FROM users;
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-- 查看referral_bindings表当前结构
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SHOW COLUMNS FROM referral_bindings;
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-- ============================================================
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-- 备注：
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-- 1. 备份表 users_referred_by_backup 可保留一段时间
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-- 2. 确认无误后，可执行: DROP TABLE users_referred_by_backup;
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-- 3. 代码已修改为只使用 referral_bindings 表
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-- 4. 部署后请测试绑定和佣金功能
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-- ============================================================
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