We have an OLTP database and no data warehouse. We are currently planning out a build for a data warehouse however (possibly using Hadoop). "X" is recommending that we convert our current, normalized OLTP database into a flattened Star Schema. The primary rationale for this OLTP flattening is that since most of the app calls to the database are SELECT statements, the DB should be optimized for that. A peripheral rationale I've heard is that the 1NF-3NF database is hard to understand sometimes. I'm not going to state what I believe. I would like to hear my esteemed colleagues take on this situation. What would you do? What would you say? Is there anything you would investigate? In short, what say you? Thanks for your time. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general