Jan, > we arrived at the conclusion that we really need "Materialized Views" > for our further business. just some information http://wiki.postgresql.org/wiki/Updatable_views are on the wishlist for PostgreSQL 8.4; and (Bernd) is the one coordinating it: http://wiki.postgresql.org/wiki/Todo:WishlistFor84 As the whole VIEW system has to be touched for this AND for materialized views, maybe it is a good idea to contact him? also: http://www.postgresql.org/docs/faqs.TODO.html MATERIALIZED VIEWS have been on the TODO list for quite some time ... > someone from the community for the feature to be implemented for > Postgres instead of doing it ourselves. I think after asking here on PostgreSQL-General, your next step may be to propose sth along the lines: "would like sponsor sb to build MATERIALIZED VIEWS into PostgreSQL" on pgsql-hackers: "The PostgreSQL developers team lives here. Discussion of current development issues, problems and bugs, and proposed new features. If your question cannot be answered by people in the other lists, and it is likely that only a developer will know the answer, you may re-post your question in this list. You must try elsewhere first!" best wishes, Harald -- GHUM Harald Massa persuadere et programmare Harald Armin Massa Spielberger Straße 49 70435 Stuttgart 0173/9409607 fx 01212-5-13695179 - EuroPython 2008 will take place in Vilnius, Lithuania - Stay tuned!