Thread: FUNCTIONS PROBLEM

Hi.

i have a function and i need to return 4 fields but not work,

any idea , please

thank

mario

Hi Mario,

I have used a record type to do this:

create myfunc() returns record as '

declarereturn_val    record;col1        int;col2        int;col3        real;col4        char;
col1 := 5;col2 := 10;col3 := 2.7;col4 := ''z'';
select col1,col2,col3,col4 into return_val;return return_val;
end;
' language 'plpgsql';

When you call the function you need to specify the expected output:

select * from myfunc() as (val1 int, val2 int, val3 real, val4 char);

See the SELECT reference page in the documentation.

There are other ways (which may be better) to do this that don't require the output types to be specified with the
querybut this is the one I got going first so I stuck with it. Hope this helps. 

Regards,
David Witham
Telephony Platforms Architect
Unidial

-----Original Message-----
From: Mario Alberto Soto Cordones [mailto:mario_soto@compuall.cl]
Sent: Friday, 21 March 2003 09:26
To: pgsql-sql@postgresql.org
Subject: [SQL] FUNCTIONS PROBLEM
Importance: High


Hi.

i have a function and i need to return 4 fields but not work,

any idea , please

thank

mario



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TIP 4: Don't 'kill -9' the postmaster

CREATE TYPE can be used as well i think
in that case  "as (val1 int, val2 int, val3 real, val4 char);"
need not be done while selecting.


regds
mallah

On Monday 24 Mar 2003 4:48 am, David Witham wrote:
> Hi Mario,
>
> I have used a record type to do this:
>
> create myfunc() returns record as '
>
> declare
>     return_val    record;
>     col1        int;
>     col2        int;
>     col3        real;
>     col4        char;
>
>     col1 := 5;
>     col2 := 10;
>     col3 := 2.7;
>     col4 := ''z'';
>
>     select col1,col2,col3,col4 into return_val;
>     return return_val;
> end;
> ' language 'plpgsql';
>
> When you call the function you need to specify the expected output:
>
> select * from myfunc() as (val1 int, val2 int, val3 real, val4 char);
>
> See the SELECT reference page in the documentation.
>
> There are other ways (which may be better) to do this that don't require
> the output types to be specified with the query but this is the one I got
> going first so I stuck with it. Hope this helps.
>
> Regards,
> David Witham
> Telephony Platforms Architect
> Unidial
>
> -----Original Message-----
> From: Mario Alberto Soto Cordones [mailto:mario_soto@compuall.cl]
> Sent: Friday, 21 March 2003 09:26
> To: pgsql-sql@postgresql.org
> Subject: [SQL] FUNCTIONS PROBLEM
> Importance: High
>
>
> Hi.
>
> i have a function and i need to return 4 fields but not work,
>
> any idea , please
>
> thank
>
> mario
>
>
>
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> TIP 4: Don't 'kill -9' the postmaster
>
>
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-- 
Rajesh Kumar Mallah,
Project Manager (Development)
Infocom Network Limited, New Delhi
phone: +91(11)6152172 (221) (L) ,9811255597 (M)

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