add missing "data" column from association example, [ticket:2259]
add missing "data" column from association example, [ticket:2259]

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