Man pages matching name gfdump.postgresql in section 8:

gfdump.postgresql.8.en	debian 10 / gfmd
gfdump.postgresql.8.ja	debian 10 / gfmd
gfdump.postgresql.8.en	debian 11 / gfmd
gfdump.postgresql.8.ja	debian 11 / gfmd
gfdump.postgresql.8.en	debian 12 / gfmd
gfdump.postgresql.8.ja	debian 12 / gfmd