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Comment LEFT JOIN User 100 项的列表耗时降低至原来 85.7%,性能提升 17% 至原来 1.17 倍;
Comment LEFT JOIN User LEFT JOIN Moment 100 项的列表耗时降低至原来 82.6%,性能提升 21% 至原来 1.21 倍;
朋友圈 Moment LEFT JOIN User 100 项嵌套 Comment LEFT JOIN User 6 项的两层列表耗时降低至原来 94.5%,性能提升 6% 至原来 1.06 倍。
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[-]JOIN 性能优化前后对比[/-][+]4.8.3 JOIN 性能优化前后对比[/+]