Drupal 7 upgrade
Wow, 2 posts in one year. I'll try to be less chatty.
I finally upgraded this web site to Drupal 7. One big advantage of Drupal 7 over previous versions is a database abstraction layer based on PHP PDO. This means that all Drupal 7 modules should support PostgreSQL without any additional changes. In previous versions, PostgreSQL module support lagged far behind because developers often coded only for MySQL. Another advantage is Drupal 7 now supports more databases. PostgreSQL, SQLite, and MySQL are officially supported, and any database that supports PDO should theoretically work.