Re: ERROR: argument to pg_get_expr() must come from system catalogs

On 13 July 2010 16:31, Dave Page <dpage(at)pgadmin(dot)org> wrote:
> We had a report of the above error from a pgAdmin user testing
> 1.12.0b3 with PG 9.0b3. The (highly simplified) query below works fine
> as a superuser:
>
> SELECT pg_get_expr(proargdefaults, 'pg_catalog.pg_class'::regclass)
>  FROM pg_proc pr
>  LEFT OUTER JOIN pg_description des ON des.objoid=pr.oid
>
> Run as a regular user though, we get the error. If I remove the join,
> it works fine as the normal user. This is in a database owned by the
> regular user.
>
> Am I missing something obvious, or is there a bug here? pg_get_expr is
> used pretty extensively in pgAdmin, so we're obviously keen to ensure
> it works :-)
>

I tested this on both beta2 and beta3 and can confirm that it works on
beta2 but produces the following error in beta3:

********** Error **********

ERROR: argument to pg_get_expr() must come from system catalogs
SQL state: 42501

Thom