pg_dump: ERROR: Memory exhausted in AllocSetAlloc(875574064)

Is there any solution to this other than adding memory, or am I
mis-understanding the error?

pg_dump: ERROR:  Memory exhausted in AllocSetAlloc(875574064)
pg_dump: lost synchronization with server, resetting connection
pg_dump: SQL command to dump the contents of table "table_name" failed:
PQendcopy() failed.
pg_dump: Error message from server: pg_dump: The command was: COPY
"table_name" TO stdout;

v7.2.3 on RHAT 7.3 linux with 128MB RAM.

Thanks,
reid