On 2014-01-07 12:05, Niall Rooney wrote:
*From:* Niall Rooney *Sent:* 07 January 2014 10:39 *To:* 'Communication channel for developers of the MonetDB suite.' *Subject:* RE: FW: user defnined function problem
Hello Sjoerd
I have 80_udf.mal in .../lib/monetdb5/autoload with the line
include udf;
but I seem to still have a problem creating a udf function. I tried this simple definition:
*80_udf.sql*
create function identInt(val integer) returns double external name udf.identInt;
You need to quote identInt, otherwise the case gets folded to all lowercase: ... name udf."identInt";
*udf.c* str UDFidentInt(int * res, int * val) { *res = *val ; return MAL_SUCCEED; }
*udf.h* udf_export str UDFidentInt(int * res, int * val);
*udf.mal*
command identInt(val:int):int address UDFidentInt comment "return val";
I get the error message:
TypeException:user.s2_1[3]:'udf.identint' undefined in: _5:any := udf.identint(_4:int)
Best Niall -----Original Message----- From: developers-list [_mailto:developers-list-bounces+n.rooney=sophiasearch.com@monetdb.org_] On Behalf Of Sjoerd Mullender Sent: 06 January 2014 22:04 To: _developers-list@monetdb.org_ mailto:developers-list@monetdb.org Subject: Re: FW: user defnined function problem
You also need something like 80_udf.mal in .../lib/monetdb5/autoload with the line
include udf;
in it.
On 2014-01-06 18:46, Niall Rooney wrote:
Hello Stefan,
I tried doing so on a newly created database but I had the same error message.
-----Original Message----- From: developers-list [mailto:developers-list-bounces+n.rooney=sophiasearch.com@monetdb.org] On Behalf Of Stefan Manegold Sent: 06 January 2014 17:32 To: Communication channel for developers of the MonetDB suite. Subject: Re: user defnined function problem
Hi,
as all XY_*.sql files that are installed into <LIBDIR>/monetdb5/createdb/ also 80_udf.sql get only loaded and executed the first time mserver5 is started on a virgin empty (i.e., newly created) DB (then the content is persistently kept in the DB's catalog.
Thus, to get your newly added funtion working (i.e., added to the SQL catalog), you either need to create a new database, or execute the SQL commands you added to 80_udf.sql by hand (once) in mclient.
Best, Stefan
----- Original Message -----
Hello,
I am making the following adjustment to the user defined function template files .
I am using MonetDB-11.15.15 built from source on Ubuntu 12.04.
I have added to the following files in the ./sql/backends/monet5/UDF directory as shown:
80_udf.sql
create function sumProb(prob1 double, prob2 double)
returns double external name udf.sumProb;
udf.mal
module udf;
command sumProb(prob1:dbl,prob2:dbl):dbl
address UDFSumProb
comment "sum two probabilities";
udf.c
str UDFSumProb(dbl * res, dbl * prob1, dbl * prob2)
{
*res = *prob1 + *prob2;
return MAL_SUCCEED;
}
udf.h
udf_export str UDFSumProb(dbl * res, dbl * prob1, dbl * prob2);
I did a configure/make/make install and tried the following call in mclient:
declare a, b,c double; set a= 0.1; set b= 0.2; select c=jsdistance(a,b);
and get the error:
TypeException:user.s2_1[8]:'udf.sumprob' undefined in: _12:any := udf.sumprob(_8:dbl, _11:dbl)
program contains errors
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-- Sjoerd Mullender
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