Roadmap 1.0

[Veeupup]

The naive-query-engine is designed to learn the query engine and the code or logic should keep it always simple and clear!
We want to make this project support basic SQL grammar and run it with a basic MPP executor.

We can split the total process into two steps. First, we want to have the basic SQL grammar, and the issues are below (some have finished and do not have an issue related...)
#15
#16
#17
#26
#28
#29
#32
#43
#44
#47
#48
#50
#64
#65

and the second milestone is the MPP executor
#18

Any contributions are welcome!