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MySQL性能优化实战:从3秒到300ms的索引优化指南
在数据量激增的背景下,MySQL查询性能已成为开发者最头疼的问题之一。本文将分享经验证的"3步索引优化法",配合最新工具链,带你实现查询效率的十倍提升。 -- 2025年常见陷阱 SELECT * FROM orders WHERE JSON_EXTRACT (metadata, '$.region') = 'Asia'; -- JSON路径查询未建索引 ...
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Bill to end shutdown advances
BBC leaders resign
Former NFL commissioner dies
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2 killed in house fire
Hamas hands over remains
Missing student’s body found
Police officer shot, killed
Former NHL forward dies
MLB pitchers charged
Strong quake off Japan coast
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Massive RU strike on Ukraine
‘Predator' tops box office
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UPS grounds planes
Baby formula recalled
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NFL penalizes Jalen Ramsey
Leads Remembrance Sunday
Biden visits Omaha
Activated from IR
Gaza death toll hits 69,000
NCAA revokes eligibility
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