Ashley Sheridan wrote:
On Mon, 2008-12-08 at 23:23 +0000, [EMAIL PROTECTED] wrote:
Presumable, the EXISTS sub-query can be optimized sometimes to just stop 
processing the sub-query and kick things back out to the outer query.



IN has to process them all and find them all.



Don't forget the special case use as well:

IF NOT EXISTS `universe` THEN bigbang()


Ash
www.ashleysheridan.co.uk


any chance of writing the implementation of that bigbang() function? give you a pound!

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