Re: Hrm...why is this wrong?

Ken Corey wrote:
> Wow! Answering emails on a Sunday? Someone should be giving you an award or
> something.
>
> On Sunday 04 February 2001 8:13 pm, you wrote:
> > Ken Corey <ken(at)kencorey(dot)com> writes:
> > > When the select at the bottom of this email is executed, I'm getting the
> > > message:
> > > ERROR: parser: parse error at or near "$1"
> >
> > I don't get that; I get
> > ERROR: Attribute 'username_in' not found
> > which is about what I'd expect for the given function text; maybe you
> > didn't transcribe it accurately?
>
> That's strange...perhaps the difference was a problem with my table
> definition? *shrug* I also had made a few mistakes, so once I got those
> fixed, the code seems to work again.
>
> > Anyway, an invaluable technique for debugging plpgsql functions is to
> > start psql with debug level 2, so that the queries the plpgsql executor
> > feeds to the SQL engine get logged in the postmaster log. (If you don't
> > run the postmaster with a logfile, you should...) For example:
>
> Hey, that's perfect. It's okay just so long as the debugging out goes
> *somewhere*...:^)

Another lesser known trick is to add

#option dump

at the top of the function body (before DECLARE). This
causes the PL/pgSQL compiler to dump out the entire function
after parsing where you can see all the SPI queries that
later will get executed.

Jan

--

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# It's easier to get forgiveness for being wrong than for being right. #
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