This is really cool !! It would be great if the schema diagram could be opened as a separate window for reference. I liked how intermediate queries be tested and you don’t just flash an error message - but also show the results of the query.

If somebody is wondering about the name of the star - it is KIC 8462852 (http://news.discovery.com/space/alien-life-exoplanets/has-kepler-discovered-an-alien-megastructure-151014.htm)