I had to change the ODBXX API: https://bitbucket.org/tmidas/midas/commits/273c4e434795453c0c6bceb46bac9a0d2d27db18

The old C API is case-insensitive, meaning db_find_key("name") returns a key "name" or "Name" or "NAME". We can discuss if this is good or bad, but that's how it is since 30 years.

I now realized the the ODBXX API keys is case sensitive, so a o["NAME"] does not return any key "name". Rather, it tries to create a new key which of course fails. I changed therefore
the ODBXX to become case-insensitive like the old C API.

Stefan