Re: [sqlalchemy] Re: pickled automap.metadata and AmbiguousForeignKeysError

2016-01-20 Thread Mike Bayer
im assuming this is https://bitbucket.org/zzzeek/sqlalchemy/issues/3632/immutablecolumncollection-creates-a a fix is posted but I'm not comfortable merging in 1.0.x since it will break existing pickled metadata files. On 01/20/2016 07:48 PM, Jeff Laughlin wrote: > I have the exact same issue. I

[sqlalchemy] Re: pickled automap.metadata and AmbiguousForeignKeysError

2016-01-20 Thread Jeff Laughlin
I have the exact same issue. I create a new MetaData, use tometadata to copy the first to the second, and then if I use the second metadata it works fine. But if I pickle and unpickle it first then it doesn't work. So something about pickling/unpickling is breaking it. On Monday, February 24,