I really don't see this as a major problem. Just have the ability with your compiler to load a external syntax tree for the specific database sql dialect. Then

I really don't see this as a major problem. Just have the ability with your compiler to load a external syntax tree for the specific database sql dialect. Then have the ability in the syntax tree to define types that map directly to a type within the language. Easiest approach would just be to resolve the syntax tree to a constant string that is then sent to the database. I don't know why for the vast majority of programming languages they lack a lot of language features that programmer do day in day out eg... text manipulation, xml parsing, json parsing all of which are pretty straight forward and time consuming in languages without multi-line string literals.