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Dev Null
Starting Member
39 Posts |
 Posted - 2004-08-19 : 03:05:52
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Can I write my own aggregate functions somehow?User-defined functions is easy enough, but it would be really handy to, say, write a modified-mean function and then be able to:SELECT mod-mean(score), type from scores group by type I suspect I can't, since I'd need some way to pass the result sets from the group by to my function, but you guys are clever... anybody know if it can be done? |
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User-defined aggregate functions?