Jacob Coby <jcoby@xxxxxxxxxxxxxxx> 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
