"muteki muteki" <[EMAIL PROTECTED]> writes:
> Since we have our systems being deployed to numerous
> remote systems (psql 7.2.3), upgrading the entire database
> (with data migration) will be the least preferable
> solution.

At the very least you should be running 7.2.4.  We do not make
dot-releases for entertainment value, we make them because there
are critical bug fixes.  In particular, this 7.2.4 fix:
* Ensure pg_clog updates are sync'd to disk before marking checkpoint complete
might well have something to do with your problems.

> I found that there are already some files
> (mainly pg_*) tables/indexes are not being consistent
> with the filesystem.

> e.g.
> pg_shadow_usename_index
> pg_stat_activity
> pg_stat_database

Views don't have underlying files at all.  Shared tables live in a
different directory.  You had better study the system catalogs more
carefully before you start writing scripts to hack them.

                        regards, tom lane

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