"Lee Wu" <[EMAIL PROTECTED]> writes:
> http://www.postgresql.org/docs/7.3/static/routine-vacuuming.html#VACUUM-
> FOR-WRAPAROUND says:
>  "every table in the database must be vacuumed at least once every
> billion transactions".

> Does "very table" include PG's tables, such as pg_database?

Yes, absolutely.

> 2.    http://www.postgresql.org/docs/7.3/static/sql-vacuum.html says:
> "Defaults to all tables in the current database."=20

> Does "all tables include PG's tables, such as pg_class?

Yes, but you have to be superuser; for a non-superuser, the command
only vacuums the tables you own.

                        regards, tom lane

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