a typo on postgres returning test version check - change <8.4 -> <8.2
a typo on postgres returning test version check - change <8.4 -> <8.2

hsum/sqlalchemy,graingert/sqlalchemy,WinterNis/sqlalchemy,inspirehep/sqlalchemy,ThiefMaster/sqlalchemy,Akrog/sqlalchemy,itkovian/sqlalchemy,brianv0/sqlalchemy,EvaSDK/sqlalchemy,epa/sqlalchemy,halfcrazy/sqlalchemy,davidjb/sqlalchemy,zzzeek/sqlalchemy,wujuguang/sqlalchemy,monetate/sqlalchemy,Cito/sqlalchemy,276361270/sqlalchemy,itkovian/sqlalchemy,WinterNis/sqlalchemy,pdufour/sqlalchemy,wfxiang08/sqlalchemy,hsum/sqlalchemy,davidjb/sqlalchemy,sqlalchemy/sqlalchemy,olemis/sqlalchemy,Cito/sqlalchemy,alex/sqlalchemy,dstufft/sqlalchemy,bootandy/sqlalchemy,bdupharm/sqlalchemy,robin900/sqlalchemy,wfxiang08/sqlalchemy,graingert/sqlalchemy,bootandy/sqlalchemy,elelianghh/sqlalchemy,brianv0/sqlalchemy,bdupharm/sqlalchemy,j5int/sqlalchemy,sandan/sqlalchemy,Cito/sqlalchemy,j5int/sqlalchemy,robin900/sqlalchemy,pdufour/sqlalchemy,dstufft/sqlalchemy,ThiefMaster/sqlalchemy,276361270/sqlalchemy,alex/sqlalchemy,davidfraser/sqlalchemy,davidfraser/sqlalchemy,monetate/sqlalchemy,olemis/sqlalchemy,wujuguang/sqlalchemy,EvaSDK/sqlalchemy,epa/sqlalchemy,halfcrazy/sqlalchemy,alex/sqlalchemy,sandan/sqlalchemy,Akrog/sqlalchemy,inspirehep/sqlalchemy,elelianghh/sqlalchemy