From: | Bricklen Anderson <BAnderson(at)PresiNET(dot)com> |
---|---|
To: | Jerry Sievers <jerry(at)jerrysievers(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: how to emit line number in a function? |
Date: | 2005-11-04 14:51:05 |
Message-ID: | 436B7559.6090904@PresiNET.com |
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Thread: | |
Lists: | pgsql-general |
Jerry Sievers wrote:
> Bricklen Anderson <BAnderson(at)presinet(dot)com> writes:
>
>
>>I couldn't find any useful references in the docs or archives for emitting the
>>line number of a plpgsql function (in a RAISE statement). I'd like to use it for
>>debugging some complex functions.
>>Does anyone have any tips on where to look, or an example of this?
>
>
> Have a look at the m4 macro processor
>
> changequote({,})dnl
> define({func_body},{$$begin
> raise exception 'I barfed on line #__line__';
> end$$})dnl
>
> create function some_func()
> returns whatever
> as func_body
> language plpgsql;
>
> This can be useful sometimes... but may ADD to your debugging
> headaches if not used artfully!
>
> HTH
>
I'll look into that, thanks for the suggestion.
Cheers,
Bricklen
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