I've seen several resources presenting Druid as cubing technology but when I looked to details I feel really confused. IMHO it's more an OLAP technology than cubing one.
Can you please help me clear my mind? Can we build cubes in Druid? Are they automagically created or should I give instruction to build them?
When you import data into Druid it segments and rolls up the data and stores it in a way that is optimised for OLAP queries. I'm comfortable calling that store a cube. My experience of Druid is limited but my understanding the cube is built as you load the data into it.
Personally I use OLAP and cube terminology interchangeably. What do you feel separates the term cube from OLAP?