[Monetdb-developers] How to enable functions via sql?

Alexandr Kulik alexandr.kulik1988 at gmail.com
Thu Sep 16 07:43:26 CEST 2010


Stefan,

I understand how to create function from sql that receive value as input
param(s). But how could i write sql function that receive array of values as
input? For example i want to enable stdev function at algebra module, is it
possible to do from sql?

Alex

Op 06-09-10 18:13, Alexandr Kulik schreef:
> I need to develop some extra statistical functions for MonetDB. I
> spent about a week to understand how to use function via sql, but
> still didn't have any succes results. May be someone could point me to
> appropriate documentation or source revision, where i could look on
> it?

You might be interested in these two files it shows how to add a module
to SQL written in the mx language:

http://kinkrsoftware.nl/contrib/monetdb/sphinx.mx
http://kinkrsoftware.nl/contrib/monetdb/sphinx.patch

After that you will still have to 'create function', but that is
relatively simple.


Stefan
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-- 
With Best Regards Alexandr Kulik
Skype: kulya_u
Yahoo: kulya_u
LinkedIn: http://www.linkedin.com/in/alexandrkulik
Mobile: +3(806)615-40511
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