Another case:
format=lambda row: '{} {}'.format(row.thickness, row.material)
will throws the Oracle Error.
format='%(thickness)s %(material)s',
will not throw the error
--
Another case:
format=lambda row: '{} {}'.format(row.thickness, row.material)
will throws the Oracle Error.
format='%(thickness)s %(material)s',
will not throw the error
--