function body error checking issues

Bruce,
This function which has even more errors also raises no errors when run in the query editor:

CREATE or replace function annual.get_ratio72( float8, float8)
RETURNS pg_catalog.float8 AS
$BODY$
DECLARE
execptioncount_in alias for $1;
questioncount_in alias for $2;


  IF (execptioncount_in >0) AND (questioncount_in >0) --THEN

    RATIO_OUT = execptioncount_in / questioncount_in;

  ELSE
    --this variable is not declared, yet when I run this query no error is raised
    EXCEPTIONRATIO_OUT = 0;
  END;
return ratio_out;
END;
$BODY$
LANGUAGE 'plpgsql' VOLATILE;
> From: Bruce Momjian <pgman@candle.pha.pa.us>
> Date: 2005/02/21 Mon AM 10:47:35 EST
> To: tony_caduto@amsoftwaredesign.com
> CC: pgsql-general@postgresql.org
> Subject: Re: [GENERAL] is there anyway to get the backends IP address from
>
> Tony Caduto wrote:
> > Bruce,
> > On another note, is there plans to improve the type checking of stored
> > functions during the save/compile?
> > Currently I can pretty much make tons of mistakes (on purpose of course
> > :-) and they are not flagged as errors until runtime.
> > The biggest complaint I see from other DBAs (MS SQL, Oracle) is that
> > Postgres does little to no pre-runtime type checking.
>
> We have no plans to improve that.  We do have 'check_function_bodies'
> which defaults to true and does some checking.  Would you give us a
> particular example you would like improved?
>
> --
>   Bruce Momjian                        |  http://candle.pha.pa.us
>   pgman@candle.pha.pa.us               |  (610) 359-1001
>   +  If your life is a hard drive,     |  13 Roberts Road
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>