6 + sql: ORDER BY, explicit VALUES
7 + csharp: IEnumerable<>
12 + parse table constraints
13 + reuse prepared statements
14 + substitute params syntax in queries to match target
15 + parse more SQL (mysql quirks, ALTER, DROP TABLE, INSERT SET)
16 + better infer types for UPDATE SET
20 + generate XML and Java
21 + c++ traits for mysql
26 + understands all basic SQL
27 + generate OCaml and C++