Jeremy D. Zawodny writes:
> On Thu, Feb 22, 2001 at 12:39:41AM +0100, michi platzer wrote:
> >
> > i need to write my own very basic aggregate functions for MySQL and
> > had a couple of questions regarding this:
> >
> > * does anybody know of a site with a collection of UDF's written by other
> > MySQL user?
>
> Nope, sorry.
>
> > * i read an old posting (from 99) about somebody writing a little
> > tool, which enabled him to write UDFs in Perl: does anybody know
> > more about this (excuse my naive question, but i guess there is
> > nothing like that available for Java, or?)
>
> Again, no.
>
> > * any known problems for using UDFs over the JDBC-interface?
>
> UDFs are really independent of the clinet language, since they run on
> the server side and just look like server-side functions.
>
> > * is it true that there is no way for using UDFs on the Windows-platform?
>
> Don't know. What does the manual say?
>
> > * i could not find udf_example.cc neither in the Win-distribution,
> > nor in the Linux-Intel-version. can anybody provide me with some
> > basic example code, so that i see how aggregate functions should
> > work?
>
> sql/udf_example.cc in the source distribution.
>
> > ps. i was already thinking about changing to a pure Java database,
> > in order to write some functions on the DBserver-side in Java, since
> > i am more familiar with this, but then i had to figure out there is
> > nothing out there that is nearly as reliable, fast and inexpensive
> > as MySQL!! keep up the good work, guys!
>
> Yeah, if you were looking at Java databases, I assumed that speed
> wasn't a concern for you. :-)
>
> Jeremy
> --
> Jeremy D. Zawodny, <[EMAIL PROTECTED]>
> Technical Yahoo - Yahoo Finance
> Desk: (408) 328-7878 Fax: (408) 530-5454
> Cell: (408) 439-9951
Hi!
There is in our sql/ subdir of source distro a source file
udf_example.cc, which has many nice UDF examples.
Among others, there is avgcost function which is a very nice example
of aggregate UDF.
UDF's on Windows are in the works.
Regards,
Sinisa
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