For each query that does a join in the TPC-E spec, check 

• Interesting MQL features required
• Tables involved, and whether those tables are growing tables or not
• Whether the joins involve fields with skew

This will allow us to figure out if the level of coverage we can get from TPC-E. After this, we will be able to decide if additional MQL support is required, and whether we’ll need to figure out how to generate data for growing tables