You can start with the high level architecture [1]. Then the community might help you if you have any specific questions.
[1] https://drill.apache.org/architecture/ On Sun, Jul 24, 2016 at 11:36 PM, Sanjiv Kumar <ktrsan...@gmail.com> wrote: > How drill runs query internally. I want to know how drill execute query for > different data sources.I want to know internal process of drill. > > > > ...................... > Thanks & Regards > *Sanjiv Kumar* >