[plt-scheme] Database Connectivity Role Call

Hi folks,

May you please reply to this post if you are actively or have actively
used in the past a particular database connectivity library with PLT
Scheme, and the name of that library?

I am more interested in folks vouching for libraries in particular
rather than just pointing me at Planet.

I have already bugged Noel about PostgreSQL enough on this one, so one
thing I do know is that PLT Scheme and PostgreSQL work very well
together!

Platform is also interesting, for example, if ODBC on Windows versus on UNIX.