Re: Order by parameter inside pgsql function ignored

From: "A(dot) Kretschmer" <andreas(dot)kretschmer(at)schollglas(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Order by parameter inside pgsql function ignored
Date: 2009-06-02 08:46:42
Message-ID: 20090602084642.GK20894@a-kretschmer.de
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In response to Anton Marchenkov :
> Hi!
>
> I'm trying to use the order by parameter inside a function, but it is
> ignored. Any ideas why? And how can I sort by external parameters inside
> pgsql function?

You an use dynamic SQL with EXECUTE, for instance:

create or replace function my_order (var_order text) ... as $$
declare
my_sql text;
begin
...
my_sql := 'select ... from table order by ' || var_order';
execute my_sql;
...

Regards, Andreas
--
Andreas Kretschmer
Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header)
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