优化工作-1

2026-06-05 07:41:52 +08:00
parent b7ec5e2755
commit 0b9b0b5ea7
17 changed files with 1807 additions and 127 deletions
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+-- ============================================
+-- 数据库索引性能测试脚本
+-- 用途: 对比索引创建前后的查询性能
+-- 使用方法: mysql -u root -p hfb_sys < test_index_performance.sql
+-- ============================================
+
+SET NAMES utf8mb4;
+
+-- 关闭查询缓存，确保测试准确性
+SET SESSION query_cache_type = OFF;
+
+-- 开启性能分析
+SET profiling = 1;
+
+-- ============================================
+-- 测试 1: 订单状态+创建时间查询
+-- ============================================
+
+-- 清空缓冲区
+RESET QUERY CACHE;
+
+-- 查看执行计划
+EXPLAIN SELECT * FROM rental_orders
+WHERE status = 'active'
+ORDER BY created_at DESC
+LIMIT 20\G
+
+-- 执行查询并记录时间
+SELECT '测试 1: 订单状态+创建时间查询' AS test_name;
+SELECT * FROM rental_orders
+WHERE status = 'active'
+ORDER BY created_at DESC
+LIMIT 20;
+
+-- ============================================
+-- 测试 2: 钱包流水按用户+业务类型查询
+-- ============================================
+
+RESET QUERY CACHE;
+
+EXPLAIN SELECT * FROM wallet_ledger
+WHERE user_id = 1 AND biz_type = 'order_payment'
+ORDER BY created_at DESC
+LIMIT 20\G
+
+SELECT '测试 2: 钱包流水按用户+业务类型查询' AS test_name;
+SELECT * FROM wallet_ledger
+WHERE user_id = 1 AND biz_type = 'order_payment'
+ORDER BY created_at DESC
+LIMIT 20;
+
+-- ============================================
+-- 测试 3: 订单结算状态查询
+-- ============================================
+
+RESET QUERY CACHE;
+
+EXPLAIN SELECT * FROM rental_orders
+WHERE settlement_status = 'unsettled' AND owner_id = 1
+ORDER BY created_at
+LIMIT 20\G
+
+SELECT '测试 3: 订单结算状态查询' AS test_name;
+SELECT * FROM rental_orders
+WHERE settlement_status = 'unsettled' AND owner_id = 1
+ORDER BY created_at
+LIMIT 20;
+
+-- ============================================
+-- 测试 4: 商品发布时间查询
+-- ============================================
+
+RESET QUERY CACHE;
+
+EXPLAIN SELECT * FROM rental_listings
+WHERE status = 'active' AND review_status = 'approved'
+ORDER BY published_at DESC
+LIMIT 20\G
+
+SELECT '测试 4: 商品发布时间查询' AS test_name;
+SELECT * FROM rental_listings
+WHERE status = 'active' AND review_status = 'approved'
+ORDER BY published_at DESC
+LIMIT 20;
+
+-- ============================================
+-- 测试 5: 用户实名认证状态查询
+-- ============================================
+
+RESET QUERY CACHE;
+
+EXPLAIN SELECT * FROM users
+WHERE realname_status = 'verified' AND status = 'active'
+LIMIT 100\G
+
+SELECT '测试 5: 用户实名认证状态查询' AS test_name;
+SELECT COUNT(*) FROM users
+WHERE realname_status = 'verified' AND status = 'active';
+
+-- ============================================
+-- 显示性能分析结果
+-- ============================================
+
+-- 显示所有查询的性能概览
+SELECT '性能测试结果' AS title;
+SHOW PROFILES;
+
+-- ============================================
+-- 索引使用情况检查
+-- ============================================
+
+SELECT '索引使用情况检查' AS title;
+
+-- 检查新增索引是否存在
+SELECT
+  TABLE_NAME,
+  INDEX_NAME,
+  GROUP_CONCAT(COLUMN_NAME ORDER BY SEQ_IN_INDEX) AS columns
+FROM information_schema.STATISTICS
+WHERE TABLE_SCHEMA = DATABASE()
+  AND INDEX_NAME IN (
+    'idx_rental_orders_status_created_at',
+    'idx_wallet_ledger_user_biz_created',
+    'idx_rental_orders_settlement',
+    'idx_rental_listings_published',
+    'idx_users_realname_status'
+  )
+GROUP BY TABLE_NAME, INDEX_NAME
+ORDER BY TABLE_NAME, INDEX_NAME;
+
+-- ============================================
+-- 慢查询统计
+-- ============================================
+
+SELECT '慢查询统计' AS title;
+SHOW GLOBAL STATUS LIKE 'Slow_queries';
+
+-- ============================================
+-- 索引基数检查（检查索引选择性）
+-- ============================================
+
+SELECT '索引基数检查' AS title;
+
+-- rental_orders 表索引基数
+SELECT
+  INDEX_NAME,
+  SEQ_IN_INDEX,
+  COLUMN_NAME,
+  CARDINALITY,
+  SUB_PART,
+  NULLABLE
+FROM information_schema.STATISTICS
+WHERE TABLE_SCHEMA = DATABASE()
+  AND TABLE_NAME = 'rental_orders'
+  AND INDEX_NAME LIKE 'idx_%'
+ORDER BY INDEX_NAME, SEQ_IN_INDEX;
+
+-- wallet_ledger 表索引基数
+SELECT
+  INDEX_NAME,
+  SEQ_IN_INDEX,
+  COLUMN_NAME,
+  CARDINALITY,
+  SUB_PART,
+  NULLABLE
+FROM information_schema.STATISTICS
+WHERE TABLE_SCHEMA = DATABASE()
+  AND TABLE_NAME = 'wallet_ledger'
+  AND INDEX_NAME LIKE 'idx_%'
+ORDER BY INDEX_NAME, SEQ_IN_INDEX;
+
+-- ============================================
+-- 表统计信息
+-- ============================================
+
+SELECT '表统计信息' AS title;
+
+SELECT
+  TABLE_NAME,
+  TABLE_ROWS,
+  AVG_ROW_LENGTH,
+  DATA_LENGTH,
+  INDEX_LENGTH,
+  ROUND(DATA_LENGTH / 1024 / 1024, 2) AS data_mb,
+  ROUND(INDEX_LENGTH / 1024 / 1024, 2) AS index_mb,
+  ROUND((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024, 2) AS total_mb
+FROM information_schema.TABLES
+WHERE TABLE_SCHEMA = DATABASE()
+  AND TABLE_NAME IN ('rental_orders', 'wallet_ledger', 'rental_listings', 'users')
+ORDER BY TABLE_NAME;
+
+-- ============================================
+-- 测试完成
+-- ============================================
+
+SELECT '索引性能测试完成！' AS message;
+SELECT '请查看 SHOW PROFILES 的结果，对比优化前后的查询时间' AS tips;
+
+-- 关闭性能分析
+SET profiling = 0;