Re: help on quoteing in plpgsql function

Good ole printf... for those keeping score at home, the solution was:

CREATE OR REPLACE FUNCTION purge_old_messages()
RETURNS bool
AS
'DECLARE

    arrTables RECORD;
    strDelete TEXT;

 BEGIN
    FOR arrTables IN SELECT table_name,historysize FROM table_info WHERE
historysize > 0 AND table_name like ''msg%'' LOOP

        strDelete := ''DELETE FROM ''
            || quote_ident(arrTables.table_name)
            || '' WHERE timestamp < now() - ((''''''
            || arrTables.historysize
            || '' days'''' )::interval) '';

        EXECUTE strDelete;

    END LOOP;

    RETURN ''t'';

 END;'

LANGUAGE 'plpgsql';

Note that no "quote_foo" function was needed on the second variable
since I had to enclose it along with other text within my own quotes.

Robert Treat

On Mon, 2002-06-17 at 09:25, Jan Wieck wrote:
> Robert Treat wrote:
> >
> > I think I am at the point of just guessing now, so I'm hoping someone
> > can shed a little light on this. Heres the code:
> >
> > CREATE OR REPLACE FUNCTION purge_old_messages()
> > RETURNS bool
> > AS
> > '[...]
> >
> > What I am trying to accomplish with the second sql query is:
>
>     What about putting a
>
>         RAISE NOTICE ''strDelete = %'', strDelete;
>
>     before the EXECUTE and continue with try'n'error?
>     Good old "printf-debugging" allways works :-)
>
>
> Jan
>
> --
>
> #======================================================================#
> # It's easier to get forgiveness for being wrong than for being right. #
> # Let's break this rule - forgive me.                                  #
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