Any commercial shopping cart packages using postgresql?

I may need to move a web store to another hosting facility or rewrite it.

I will need to be able to tie it to the in-house order entry system
(which is/will be in Postgresql) for inventory status information.

Are there any commercial web store/shopping cart packages or host sites
that run under PostgreSQL?  I found one web store package in the pgsql
project archives, but it looks like it may need a lot of tinkering to get
it working.
--
Mike Nolan