compiler: adjust _get_colparams to return the columns and parameters in separate lists
compiler: adjust _get_colparams to return the columns and parameters in separate lists

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