added interval & uuid as string type for postgres
added interval & uuid as string type for postgres

ogero/bee,springning/bee,BorisBorshevsky/bee,franzwilhelm/bee,tguangch/bee,linkeo/bee,qida/bee,qida/bee,beego/bee,amrfaissal/bee,beego/bee,kyawmyintthein/bee,aamsur/bee,layeka/bee