Jacob Coby <[EMAIL PROTECTED]> writes:
> I then tried:
> foo=# select * from pg_catalog.pg_statistic ;
> ERROR:  could not access status of transaction 3242180415
> DETAIL:  could not open file "pg_clog/0C13": No such file or directory

> so it seems that pg_catalog.pg_statistic has somehow become corrupt on 
> template0?

Yeah, that's what it looks like.  If you're interested in digging into
why, it'd be productive to run "pg_filedump -i -f" on the table
(see http://sources.redhat.com/rhdb/ for that utility).

If you just want to get out of the problem, it's fortunately not hard
because pg_statistic is all derived data.  Go into template0, TRUNCATE
pg_statistic, and then VACUUM ANALYZE to regenerate it and VACUUM FREEZE
to re-freeze template0.  (You'll need to fool with
pg_database.datallowconn to let yourself into template0.  Read the
manual's bit about template databases if you aren't sure what you're
doing here.)

                        regards, tom lane

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