In an earlier post, I discussed a way of accessing PostgreSQL from Stata. One downside is that this approach would not work for Windows users without significant modification. I asked a question on StackOverflow to see if anyone could identify the necessary modifications.
While one user could answer my StackOverflow question, it seems the easier way to access PostgreSQL from Stata on Windows is via ODBC. It turns out to be fairly straightforward to get ODBC working on Mac OS X (see here).