ActiveRecord tries to INSERT to Computed Columns and causes SQL Error

[adame11]

Steps to Reproduce

1. Create a table with a Computed Column (e.g., 1+2+3)
2. Generate ActiveRecord.cs and run
3. Attempt to Save a new object to db (ObjectName.Save(username, providerName) ... or ActiveRecord.Add(providerName)...

Actual Result:
System.Data.SqlClient.SqlException: The column "{0}" cannot be modified because it is either a computed column or is the result of a UNION operator.

Expected Result:
Columns that are IsComputed=1 (true) should be ignored for INSERTs. They should not render a "set" property either. IsComputed is a property of column but it appears to not be honored

For more information, see forum thread:
http://stackoverflow.com/questions/4423613/computed-columns-in-sql-server-with-subsonic