"Kevin Grittner" <[email protected]> writes:
> Tom Lane <[email protected]> wrote:
>> This amounts to assuming that no new indexes get added to system
>> catalogs after initdb, or at least not during concurrent
>> operations wherein indcheckxmin would be important.
> Sounds reasonable, but can we enforce it through locks rather than
> assuming, or isn't there a clear way to do that without risking
> deadlocks?
Well, we already enforce it through the allow_system_table_mods mechanism:
regression=# create index foo on pg_index(indcheckxmin);
ERROR: permission denied: "pg_index" is a system catalog
Yes, you can turn that off if you try hard enough, but it's on your own
head to know the consequences.
regards, tom lane
--
Sent via pgsql-hackers mailing list ([email protected])
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers
