Revert "Merge pull request #637 from jzelenkov/fix-postgres-oid"
Revert "Merge pull request #637 from jzelenkov/fix-postgres-oid"

This reverts commit 1098046ffd428911f58d18670660485eb78cdebe, reversing
changes made to 8c06687495f0e8490feb4eb12bad6188c0cdd345.

ivanzotov/geocoder,FanaHOVA/geocoder,AndyDangerous/geocoder,brian-ewell/geocoder,rdlugosz/geocoder,malandrina/geocoder,ankane/geocoder,mveer99/geocoder,tortuba/geocoder,jaigouk/geocoder-olleh,crdunwel/geocoder,aceunreal/geocoder,sideci-sample/sideci-sample-geocoder,TrangPham/geocoder,rayzeller/geocoder,gogovan/geocoder-olleh,tiramizoo/geocoder,eugenehp/ruby-geocoder,jgrciv/geocoder,StudioMelipone/geocoder,3mundi/geocoder,sr-education/geocoder,donbobka/geocoder,davydovanton/geocoder,sjaveed/geocoder,Devetzis/geocoder,boone/geocoder,GermanDZ/geocoder,jaigouk/geocoder-olleh,guavapass/geocoder,rios1993/geocoder,andreamazz/geocoder,mehlah/geocoder,mdebo/geocoder,alexreisner/geocoder,epyatopal/geocoder,moofish32/geocoder,gogovan/geocoder-olleh