Re: Help making a plpgsql function? - Mailing list pgsql-general

From John DeSoi
Subject Re: Help making a plpgsql function?
Date
Msg-id 458955ED-ABC5-4108-A96E-AD7CD26AA88E@pgedit.com
Whole thread Raw
In response to Re: Help making a plpgsql function?  (Bjørn T Johansen <btj@havleik.no>)
Responses Re: Help making a plpgsql function?  (Bjørn T Johansen <btj@havleik.no>)
Re: Help making a plpgsql function?  (Bjørn T Johansen <btj@havleik.no>)
List pgsql-general
On Jul 5, 2006, at 3:51 PM, Bjørn T Johansen wrote:

> Yes, but I need to return n fields from one table and n fiels from
> another, and n fields from yet another
> table, etc... and return this as some kind of record... How do I to
> this?

Create a type. Something like

create type my_type as (i1 integer, t1 text); -- whatever fields you
need

create or replace function test ()
returns my_type as $$
declare
    mt my_type%rowtype;
    icol integer;
    t2 some_table2%rowtype;
begin
    select into icol integer_col from some_table1 where some_col =
some_val;
    select into t2 * from some_table2 where some_col = some_val;
    mt.i1 := icol;
    mt.t1 := t2.text_col;
    return mt;
end;
$$ language plpgsql;


And you can return multiple my_type records (a set returning
function) by changing the return type to "setof my_type" and then
returning multiple records from your function.




John DeSoi, Ph.D.
http://pgedit.com/
Power Tools for PostgreSQL


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