Which Data Table has work item Approver name and Status?

I'm trying to construct a SQL query in Report Builder that will list the pending reviews and approvals with their name.  But I can't find the data table listed in the Data Dictionary.  I've tried the Data Dictionary under Rational CLM 6.01 (the version we're on), the data dictionary on jazz.net, and the Rational Insight dictionary but with no luck.  The data dictionary for RTC on jazz.net does list an Approval table, but using that table name in the SQL query returns an error. 

Here's what I tried:
SELECT
APPROVER_ID
FROM RIDW.REQUEST_APPROVAL

also tried

SELECT
APPROVER_ID
FROM RIDW.VW_REQUEST_APPROVAL

Suggestions?