Looking at archives seem to indicate missing pg_clog files is some form
of row or page corruption.
In an old thread from back in 2003 Tom Lane recommended
(http://tinyurl.com/jushf):
If you want to try to narrow down where the corruption is, you can
experiment with commands like
select ctid,* from big_table offset N limit 1;
Is that still a valid suggestion?
How do I know the possible maximun value for offset to try for each table?
If I have logs turned on.. at which level will the eror show? I am only
aware of the problem, because an application connected to postgrseql had the
errors in it's logs, but not seeing anything in the postgresql logs
themselves.
Just tried a pg_dump and got the
could not open file "pg_clog/0000"
error.
The file pg_clog/0000 is missing.
Looking at another thread (http://tinyurl.com/feyye) I see that the file can
be created as 256K worth of zeroes. If I do this.. will operations resume
normally? Is there a way to tell if any data was lost?
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