As part of the modernization effort in Facebook, we want to develop a new parser front end. The goals for this new project includes:
* SQL16 compliance
* New language extensions for rich types, streaming, graph process, etc.
* Fully resolved AST
* AST rewriter framework and optimizations
* Fully compatible with current presto-parser
We think a stand-alone project is better because we want to push this to be a more general SQL standard for other SQL-based query processing frameworks as well. But this will still be under the presto org as a Presto Foundation project and we want to ensure this is fully compatible with existing Presto grammar. Please reply if you have any questions or concerns on this project.