Horton

Re: Notiffy problem

Merlin Moncure <mmoncure@gmail.com>

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From: Merlin Moncure <mmoncure@gmail.com>
To: Richard Huxton <dev@archonet.com>
Cc: adasko98 <adasko.86@gmail.com>, pgsql-general@postgresql.org
Date: 2012-06-29T13:50:31Z
Lists: pgsql-general 
On Fri, Jun 29, 2012 at 3:29 AM, Richard Huxton <dev@archonet.com> wrote:
> On 29/06/12 09:01, adasko98 wrote:
>>
>> Hi
>> In first sorry for my english :) I have got a problem with
>> notify/listener.
>> I do a function which returns a trigger. Everything is ok but when i want
>> send in a second parameter a variable NOTIFY say: "syntax error"
>
>
>>     Notify demoApp, 'some text';
>
>
>>        n_user :='sda';
>>     Notify demoApp, n_user ;<----here is a problem
>
>
> Looks like a limitation of the plpgsql parser, perhaps even counts as a bug.
> You can work around it with EXECUTE though, something like:
>  cmd := 'NOTIFY demoApp, ' || quote_literal(n_user);
>  EXECUTE cmd;
> or just
>  EXECUTE 'NOTIFY demoApp, ' || quote_literal(n_user);

also see pg_notify() function.

merlin