PostgreSQL and the SQL standards process

That's cool but its not standard and AFAIK not implemented anywhere else. Is it even in Mono? That's what I was saying about each environment getting its own better or worse API implementation. At the end of the day, right now, whatever queries you can create with LINQ, which must output SQL at the end, can be done in any language or by hand. What if that was tied to the combination of the implementation language and backend db, if LINQ was only available for C# talking to MS SQL, with features not exposed or usable by other languages or against other DBs.

I suppose that's already the case somewhat with proprietary extensions and incompatibilities between different SQL databases but I worry that it would be harder to handle and workaround if there were less compatibility between applications and databases as provided by the SQL standard.