Andres Freund <andres@anarazel.de> writes:
> debugging a citus valgrind bleat I noticed that hash_create() accesses
> the result of palloc(0) as an hash element:
> Do we consider this an API usage error that we want to fix?
I think Assert(nelem > 0) would be an appropriate response.
There are probably issues in sizing the hashtable quite aside
from this one.
regards, tom lane