On 15.07.2015 17:10, Alex Ignatov wrote:
> Hello all!
> Trying to emulate "named" user defined exception with:
> CREATE OR REPLACE FUNCTION exception_aaa () RETURNS text AS $body$
> BEGIN
> return 31234;
> END;
> $body$
> LANGUAGE PLPGSQL
> SECURITY DEFINER
> ;
>
> do $$
> begin
> raise exception using errcode=exception_aaa();
> exception
> when sqlstate exception_aaa()
> then
> raise notice 'got exception %',sqlstate;
> end;
> $$
>
> Got:
>
> ERROR: syntax error at or near "exception_aaa"
> LINE 20: sqlstate exception_aaa()
>
> I looks like "when sqlstate exception_aaa()" doesn't work.
>
> How can I catch exception in this case?
Hello Alex,
The following workaround could be used:
do $$
begin raise exception using errcode = exception_aaa();
exception when others then if sqlstate = exception_aaa() then raise notice 'got exception %',sqlstate;
else raise; --reraise end if;
end;
$$
Not sure if its performance is the same as in simple exception catch,
maybe it would degrade.
Best Regards, Alexey Bashtanov
