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On Sat, 2008-01-05 at 23:43 -0500, Mark Woodward wrote: ... > Like any high performance product, if you never push it or never compare > it, you won't notice the difference. A Porsche doesn't feel much > different than a Volkswagen sitting in a garage. > > MySQL does not support SQL well enough to create really efficient > queries. MySQL's query analyzer does not do a very good job at mapping a > query to an access plan. When the amount of data you wish to access is > negligible these things are also negligible. When the amount of data is > non-trivial, MySQL is catastrophic. > > After that, MySQL's performance in a high volume site is abysmal. As > long as it is read-only, you are fine. If you start adding table > updates, inserts, or deletes MySQL's performance profile crumbles. Why > do you think you see so many "Can't access database" messages from MySQL > sites that have been slashdotted?
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