Kevin Kempter <kevink@consistentstate.com> writes:
> pg_dump: Error message from server: ERROR: could not find hash function for
> hash operator 33639
Bizarre ... that command really oughtn't be invoking any non-builtin
operator, but the OID is too high for a builtin. What do you get from
"select 33639::regoperator"?
regards, tom lane