Ana,
> We would like to inform you all that our extension to PostgreSQL, that includes hypothetical indexes (and soon index self-tuning), is available through a sourgeforge project.
> This was suggested at PgCon 2010 and we hope some of you may find it useful, contribute and give us your feedback.
Great to see this being available finally!
--
-- Josh Berkus
PostgreSQL Experts Inc.
http://www.pgexperts.com