Hi Jon,
I seems that I don't have access to the Support Tickets folder and can't complete your test. I don't see this folder when I log in and I get an "unauthorized" warning in R.

I've tried just about every test combo I could think of. So, I believe I've found the cause of my undesired results, but not sure if the LabKey behavior is intended or needs to be reported as an issue. I get the duplicate primary key columns when reading the data (e.g., getRows or labkey.selectRows) and the name of the primary key contains a space (i.e., "Skyline Number"). I noticed that the field turns yellow when I have a space in a name (see snapshot)......is that supposed to be some kind of warning? I can use spaces in other non-primary key names and don't run into any problems. I'll just remove spaces from names. It's better not to have the spaces in the column names anyway; i can put these in the labels.

Regards,
Laura