Dear all, First my compliments with this piece of useful and implemented research. Second I was wondering if there is a possibility to have so-called "triggers" in MonetDB such as in for example PostgreSQL [1] or if there are other ways to use MonetDB as an "active database". If anyone has experiences in this field or can point me to the right place to look for this experience I would be very thankful. Kind regards, Arthur van Bunningen [1] http://www.postgresql.org/docs/8.0/static/triggers.html -- Ir. A.H. van Bunningen - PhD Student, Data Management Technology Univ. of Twente, Dept of EEMCS, POBox 217, 7500 AE Enschede, Netherlands Email: bunninge@cs.utwente.nl, Phone: +31 53 489 4290, Room: ZI3061 WWW: http://www.cs.utwente.nl/~bunninge