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Re: limit number of rows using a trigger
Posted by: Darren White
Date: March 13, 2012 04:09AM

another issue is that my log grows once a second for 30 days so I end up with around 2.7 million rows so "COUNT(*)" may end up slow.

perhaps I could just use the time stamp like this?:

SELECT MIN (last_update) INTO @min FROM a_test;
IF NEW.last_update - @min >= 30 THEN
DELETE FROM a_test ORDER BY last_update LIMIT 1;

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Re: limit number of rows using a trigger
March 13, 2012 04:09AM

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