Hello Guenther, > Hi Hari, > > What kind of warehousing are you thinking of? I would be very interested to= > =20 > discuss this topic since we made lots of experience in this field using Pos= > tgres. What kind of warehouse were you testing and what is your experience with PostgreSQL? > I think one of the biggest challenges in this field is not the use of RDBMS > but the development AND maintenance of a proper data model. Without a=20 > decent model the database is nothing but a fancy file system (in extreme wo= > rds). That's exactly my opinion too! It less than optimal to adapt the special properties of biological data to a RDBMS. Instead a global view will be necessary to develop a new kind of a data model combined with an adapted Information Retrieval or Data mining, Storage layer,... to fulfil the biological needs. Do you have already an idea, where to go? Regards, Thorsten