> [r-gonzal(at)uniandes(dot)edu(dot)co]
>
> To get back the information was necessary to recover the backup we had made
> the night before and recompile Postgres.
Sounds like this could be a shared library problem. ldd your old postgres
binary and check (whether any|which) of the relevant libs have been upgraded
after its compilation.
--
Tomas Szepe <szepe(at)pinerecords(dot)com>