SELECT
column1,
column2
FROM `table`
WHERE
column1 = '1 record'
AND column2 IN ([Array of lacks record])
AND column3 IN ([thousands of records]))
现在它需要 18 秒才能运行,它可以低于 5 秒。请提出任何替代查询。
SELECT
column1,
column2
FROM `table`
WHERE
column1 = '1 record'
AND column2 IN ([Array of lacks record])
AND column3 IN ([thousands of records]))
现在它需要 18 秒才能运行,它可以低于 5 秒。请提出任何替代查询。