@contact, history repeats: Indexing and Fast-Query API? - #7 by Quincey_Koziol (2008)
Our aim is to have this (yet-to-be-developed) indexing mechanism in HDFql at least 10x faster
(2022)
Please make sure that there will be enough market in 2036. 
If you feel confident, start early. 
It’s won’t be easy but I want to see it happening before I die. 