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
DatabaseProfessionals” by Toon Koppelaars and Lex de Haan. I’ve gotten as far as execution model 3 and am now looking
atderiving 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
tryand implement those, too.
If there are other people working on this stuff it would be great to collaborate.
Regards.
-Joe
