Hi all, I’m wondering if there are other people out there working on implementing SQL ASSERTION functionality?
I’ve recently spent a bit of time looking to implement the execution models described in “Applied Mathematics for Database Professionals” by Toon Koppelaars and Lex de Haan. I’ve gotten as far as execution model 3 and am now looking at deriving polarity of involved tables to do EM4 (described in some detail in “Deriving Production Rules for Constraint Maintenance”, Ceri & Widom, VLDB Conference 1990, p555-577). EM5 & EM6 look rather more difficult but I’m intending to try and implement those, too. If there are other people working on this stuff it would be great to collaborate. Regards. -Joe -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
