plpgsql

hey all!

I want to use a "LIKE" comparison in my plpgsql script, but I'm unsure how to
do it...  What I have right now doesn't work as hoped (although I did expect it
to not work).

UPDATE dir SET udate = curtime WHERE ''bind_dir.dir''::text LIKE ''%mydir%''::text AND
    dir.uid = bind_dir.uid;

The above comparison fails as Postgres interprets the variables bind_dir.dir
and mydir as text when enclosed in two single quotes... but I cannot just tag
the '%' percent sign along after 'mydir', or the function won't compile.  So
how can I utilize the LIKE (or ~~) operator in my plpgsql scripts?

I can provide futher information (table dumps, scope of what the heck I'm
trying to do, ect. upon request, but this is probably just a silly oversight on
my part.)

If you could reply to me directly, I'd appreciate it as I'm not on the list
right now... Thanks!

-Full function-

create function bind_clean_bind () RETURNS OPAQUE AS '
    DECLARE
        bind_dir RECORD;
        mydir dir.dir%TYPE;
        curtime datetime;
BEGIN
    IF TG_OP = ''UPDATE'' OR TG_OP = ''DELETE'' THEN
        SELECT dir INTO mydir FROM dir WHERE uid = OLD.duid;
        IF FOUND THEN
            FOR bind_dir IN SELECT uid,dir FROM dir;
                curtime := ''now'';
UPDATE dir SET udate = curtime WHERE ''bind_dir.dir''::text LIKE ''%mydir%''::text AND dir.uid = bind_dir.uid;
            END LOOP;
        END IF;
    END IF;
    IF TG_OP = ''UPDATE'' OR TG_OP = ''INSERT'' THEN
        SELECT dir INTO mydir FROM dir WHERE uid = NEW.duid;
        IF FOUND THEN
            FOR bind_dir IN SELECT uid,dir FROM dir;
                curtime := ''now'';
UPDATE dir SET udate = curtime WHERE ''bind_dir.dir''::text LIKE ''%mydir%''::text AND dir.uid = bind_dir.uid;
            END LOOP;
        END IF;
    END IF;
    RETURN NEW;
END;
' LANGUAGE 'plpgsql';

--

Sincerely,
Jason Boxman

http://edseek.com/ - Your source for educational excellence

"Two roads diverged in a wood, and I-- \ I took the one lessed
traveled by, \ And that has made all the difference."
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