Still think this is an awesome syntax for exploration and interactive use - the way results are accumulated, respectively shown, is also rather nice even though

Still think this is an awesome syntax for exploration and interactive use - the way results are accumulated, respectively shown, is also rather nice even though some particular ways to query data can be harder than in pure SQL. One extension (for an independent implementation) I'm working on is even more defaults / heuristics for finding paths between tables, such that if you have a HTSQL query with /x.y.z you can leave out the y if it's clear from the context (or set by user preference). Another thing that's practically missing is a defined standard grammar, the description in the documentation isn't suitable except as guidance.