Performance with timestamp conditions
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by Tim Whitlock
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Published on 2010-04-08T11:04:54Z
Indexed on
2010/04/08
11:23 UTC
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mysql
|Performance
Which of the following is faster, or are they equivalent? (grabbing recent most records from a TIMESTAMP COLUMN)
SELECT UNIX_TIMESTAMP(`modified`) stamp
FROM `some_table`
HAVING stamp > 127068799
ORDER BY stamp DESC
or
SELECT UNIX_TIMESTAMP(`modified`) stamp
FROM `some_table`
WHERE UNIX_TIMESTAMP(`modified`) > 127068799
ORDER BY `modified` DESC
or even another combination?
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