TFS Warehouse Test Result Stack Trace

I am able to query the Test Result data for my automated tests in the TFS Warehouse DB using the TestResultView. However, I haven't been able to determine how to get the Stack Trace data that is reported in the TFS browser result page for failed tests. Can someone tell me how I can query the TFS Warehouse DB and get the Stack Trace data for an automated test that does an Assert.Fail? I haven't been able to find the table or column that has this data.