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Re: Count massively faster than select on same query, why?!?!
Posted by: John
Date: August 03, 2006 03:04PM

ok, but surely both the count(*) and the select * first have to find the rows that match the where clause? if this is the same then I still don't understand the difference of 57 seconds, when with , in this example only 18k data per row (only 3 rows), the select then has to select the rows. Why the massive difference when surely the biggest expense is executing the where clause, which is the same for both?

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