Oliver Siegmar <o(dot)siegmar(at)vitrado(dot)de> writes:
> I did a hexdump on the files within the tabelspace directory...no business
> data at all, only postgres internals (I saw a lot of function names and
> datatypes).
Would you look at pg_class in particular (file 1259) and confirm that it
contains only names of Postgres system catalogs and indexes, no tables
of your own?
If so, I think the evidence is pretty strong that this database was in
process of being created. A DB that had actually gotten used at all
would have more entries in pg_class.
regards, tom lane