Martin.Kersten@cwi.nl wrote:
The discussion thread indicates a need for some advice.
A nice euphemism for me being clueless :-)
Either, your solution works on top of SQL or it works directly on MAL. Don't ever attempt to be a man in the middle, e.g. exploiting the implementation scheme deployed for the SQL stack. It is much more complicated and extremely fragile.
OK. I never would want to modify the information which is created/maintained by SQL directly. I just wanted to have a look at them to learn something. My question arose from the fact, that I couldn't get that information. Probably due to a dumb mistake.
Instead, use the inspiration of SQL->MAL to develop your own solution, including the necessary catalog management structures. Or just extend SQL with a few missing functions to do the specifics.
I think some additional functions to SQL would be enough for storing the additional information. Thanks you for your advice Kambiz