16 lines
916 B
SQL
16 lines
916 B
SQL
-- orders 表索引优化：提升 /api/orders 列表、营收统计查询性能
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-- 执行：mysql -u user -p database < soul-api/scripts/add-orders-indexes.sql
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-- 幂等：索引已存在时跳过，可重复执行
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-- 1. idx_status_created 复合索引
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SELECT COUNT(*) INTO @cnt FROM information_schema.statistics
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WHERE table_schema = DATABASE() AND table_name = 'orders' AND index_name = 'idx_status_created';
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SET @sql = IF(@cnt = 0, 'ALTER TABLE orders ADD INDEX idx_status_created (status, created_at)', 'SELECT 1');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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-- 2. idx_user_id 索引
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SELECT COUNT(*) INTO @cnt FROM information_schema.statistics
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WHERE table_schema = DATABASE() AND table_name = 'orders' AND index_name = 'idx_user_id';
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SET @sql = IF(@cnt = 0, 'ALTER TABLE orders ADD INDEX idx_user_id (user_id)', 'SELECT 1');
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PREPARE stmt FROM @sql; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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