Very nice! I hit some severe bugs but got several queries working that I didn't expect, such as: Add a column named "FirstLetter" with the first letter of "

Very nice! I hit some severe bugs but got several queries working that I didn't expect, such as: Add a column named "FirstLetter" with the first letter of "name" Bugs: 1. In a couple of my test CSVs, some columns were completely blank in the view, though the data came through in queries. I suspect it happens with columns that have values too wide for the cell. 2. 'Group by' queries caused a Python exception in the console log: "AttributeError: 'Series' object has no attribute 'columns'"