"Andrus Moor" <kobruleht2@hot.ee> writes:
> pg_amop in mydb contains 5 rows.
> pg_amop in template1 database contains large number of rows.
> mydb does not contain user-defined operators.
> How to repair pg_amop in mydb ?
Well, you could try copying the physical file for pg_amop from template1
to mydb (and then reindexing it again). I am not holding out a lot of
hope though. I think you're most likely going to run into a dead end,
unfixable problem before you get any data out.
> Most of backup size contains few big tables which are not required to
> recover.
Maybe you should forget about pg_dump and just see if you can COPY
the tables you care about.
regards, tom lane