I am using SQLAlchemy version 0.9.7. I have ~ 400 tables that I
automatically reflect from the database. I would like to cPickle the
metadata after reflection and store this, then subsequently unpickle the
metadata and use it (for speedup) rather than use reflection again.
The pickle goes fine. When trying to unpickle and assign to metadata for
subsequent use, I get the following error:
metadata_cached = cPickle.load(cache)
TypeError: ('__new__() takes exactly 2 arguments (3 given)', <class
'sqlalchemy.sql.elements._defer_name'>, (u'material_type', None))
material_type is one of several custom Postgres types we have defined on
our database. I have searched but cannot find a way to address this. Has
anyone else tried to do a similar thing?
Thanks,
Steve
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