It is recommended to use a Unicode session character set in order to fully support all object names in the Entity Provider. If a character cannot be represented within the current client session character set, the Advanced SQL Engine will return a translation error character in the object name. The object name in this form cannot be submitted back to Teradata using the Entity Provider. For this reason the session character set that is used to generate the Entity Data Model (EDM) must also be used in generating EDM queries.
For more information on extended object name support in the .NET Data Provider see Extended Object Names in the Data Provider.