Handling the pg_global of tablespace.

Hi All.

As for pg_global, handling became difficult for reasons of Ver 8.3 to security.
http://archives.postgresql.org/pgsql-hackers/2007-10/msg00448.php
Therefore, we have to do this change by this version.

A method is considered as follows.

1. pg_global is removed by the handling of a tablespace objects.
or
2. consideration of statistics and dependents is disregarded.

I want to convert by 1.
Is there any objection? or any idea?

Regards,
Hiroshi Saito