- fix unique constraint parsing for sqlite -- may return '' for name, however
- fix unique constraint parsing for sqlite -- may return '' for name, however

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