- tighten the inspection in _ColumnEntity to reduce unnecessary isinstance() calls, express intent more clearly
- tighten the inspection in _ColumnEntity to reduce unnecessary
isinstance() calls, express intent more clearly

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