Fixes previously added aggregate tests to pass on postgres
Fixes previously added aggregate tests to pass on postgres

Selected columns must be in an aggregate call or group by column.

dresende/node-orm2,locomote/node-orm2,kapouer/node-orm2,mariamjpinto/node-orm2,kapouer/node-orm2,jtrinc/node-orm2,stueynz/node-orm2,ScoutGroup/onionrm,hallta/node-orm2,kapouer/node-orm2,kolonse/node-orm2,benkitzelman/node-orm2,benkitzelman/node-orm2,kolonse/node-orm2,kolonse/node-orm2,benkitzelman/node-orm2,pskucherov/node-orm2