[Monetdb-developers] Mapi wire protocol level 9

Hi,

As I'm working on changing the password backend of M5 to use hashes instead of cypher3d clear text passwords[1], I have to bump the wire protocol level from 8 to 9, since the client will have to construct the challenge response differently.

Since this is a bump, this is a good time to also incorporate (or prepara) any other changes that we would like to see in the wire protocol for the next feature release.

[1] to allow sql to dump users and passwords in a safe manner, the dump needs to be able restore passwords from a hash, which are then stored in the backend. Hence the backend needs to work with those hashes instead of clear text passwords, as it currently does.