Mike Yearwood
Toronto, Ontario, Canada
Information générale
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Network:
Windows 2008 Server
>>Hey all
>>
>>I've got a UDF that is something like a cross between SEEK and LOOKUP(). The problem is - calling a UDF is slower than native functions.
>>
>>The function is liberally scattered everywhere. The parameters do not match the LOOKUP function, which would have been virtually perfect. I know a search and replace might work, but that will break a lot of code too.
>>
>>So - an idea has been tickling around my mind,
>>
>>Given the existing call ... MYSEEK(seekthis,"inalias","thistag","returnthis")
>>
>>would it be possible to #DEFINE and make the above into something native at compile time?
>>
>>Thanks
>Hi Mike,
>
>the cost of a call to a wrapper function is negligible, unless you are calling it thousands of times, which you shouldn't be doing anyway. So rewrite myseek to use LOOKUP() where appropriate, and you're done.
>
>Hank
We are calling it many thousands of times because of it being used in queries. I disagree with the whole "premature optimization" schtick. Not optimizing at every chance is the true root of all evils.
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