fix missing savepoint structures
fix missing savepoint structures

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