Re: Question about catching exception

Hello

you have to parse a sqlerrm variable

CREATE OR REPLACE FUNCTION public.test(a integer, b integer)
RETURNS void
LANGUAGE plpgsql
AS $function$
begin
insert into foo values(a,b);
exception when unique_violation then
raise notice '% %', sqlerrm, sqlstate;
end;
$function$

postgres=# select test(4,2);
NOTICE: duplicate key value violates unique constraint "foo_b_key" 23505
test
──────

(1 row)

Time: 9.801 ms
postgres=# select test(3,2);
NOTICE: duplicate key value violates unique constraint "foo_a_key" 23505
test
──────

(1 row)

Time: 17.167 ms

regards

Pavel Stehule

> If the "do stuff" part can result in two different unique_violation
> exception (having two unique constraints), how can I detect which one
> was triggered?
>
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