Re: SQLSTATE and SQLERRM - Mailing list pgsql-patches

Patch retracted by author;  new one coming.

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Pavel Stehule wrote:
> Hello
>
> This patch respect last Tom's Lane notes. Is based on first variante,
>
> http://archives.postgresql.org/pgsql-committers/2005-05/msg00303.php
>
> SQLSTATE and SQLERRM are local variables blocks with EXCEPTION clause.
> I wonted respect a litlle bit Oracle behavior and therefore exist these
> variables on function scope too, allways "00000" and "Successful
> completation" (allways marked isconst).
>
> I am really not sure what is better, respect Oracle or not with visibility
> SQLSTATE and SQLERRM on function scope. Is true, using these variables
> outside EXCEPTION is nonsens, but on other hand all magic variables has
> function scope: FOUND, NEW, OLD, ... . SQLSTATE and SQLERRM are little bit
> similar. If are you in oportunity, please correct this patch. It's easy.
> Clean all parts with these on functions related procedures. Then is
> neccesery change documentation, add info about outside exceptions blocks
> is impossible use SQLSTATE and SQLERRM variables. (regress too)
>
> Regards
>
> Pavel Stehule
>
> create function excpt_test() returns void as $$
> begin
>     raise notice '% %', sqlstate, sqlerrm;
>     begin
>         raise exception 'usr exception';
>     exception when others then
>         raise notice 'caught usr exception % %', sqlstate, sqlerrm;
>         begin
>             raise notice '% %', sqlstate, sqlerrm;
>             perform 10/0;
>         exception when others then
>             raise notice 'caught usr exception % %', sqlstate, sqlerrm;
>         end;
>         raise notice '% %', sqlstate, sqlerrm;
>     end;
>     raise notice '% %', sqlstate, sqlerrm;
> end; $$ language plpgsql;
> CREATE FUNCTION
> select excpt_test();
> NOTICE:  00000 Successful completion
> NOTICE:  caught usr exception P0001 usr exception
> NOTICE:  P0001 usr exception
> NOTICE:  caught usr exception 22012 division by zero
> NOTICE:  P0001 usr exception
> NOTICE:  00000 Successful completion
>  excpt_test
> ------------
>
> Regards
> Pavel Stehule

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