SQL for Shen
(load-sql FilePath) \\ Reads, parses, evals file at path
(load-sql-tree RootPath) \\ Reads, parses, sorts, evals all files in path
(read-sql String) \\ Parses sql string into ast
(eval-sql Ast) \\ Evals sql ast, doing type inference and generating types and functions
*sql-schema* \\ Holds global database of presently loaded information about the schema