Re: [BUGS] Server crash while trying to read expression using pg_get_expr() - Mailing list pgsql-hackers

On 09/06/10 17:34, Tom Lane wrote:
> Heikki Linnakangas<heikki.linnakangas@enterprisedb.com>  writes:
>> We have two options:
>
>> 1. Make pg_get_expr() handle arbitrary (possibly even malicious) input
>> gracefully.
>
>> 2. Restrict pg_get_expr() to superusers only.
>
> I think #1 is a fool's errand.  There is far too much structure to a
> node tree that is outside the scope of what readfuncs.c is capable of
> understanding.

That's why I said that ruleutils.c will need to understand and complain 
about the rest.

Are you thinking we should retrict pg_get_expr() to superusers then?

--   Heikki Linnakangas  EnterpriseDB   http://www.enterprisedb.com