Class UnknownBackendType Represents a PostgreSQL data type that isn't known to Npgsql and cannot be handled. Inheritance object PostgresType UnknownBackendType Inherited Members PostgresType.OID PostgresType.Namespace PostgresType.Name PostgresType.FullName PostgresType.DisplayName PostgresType.InternalName PostgresType.Array PostgresType.Range PostgresType.ToString() Namespace: Npgsql.PostgresTypes Assembly: Npgsql.dll Syntax public sealed class UnknownBackendType : PostgresType