Dann Corbit wrote:
> All of the database systems
> that I know of that use this column-oriented scheme are in-memory
> database systems. I don't know if Mr. Stonebraker's is also.
KDB+ (http://kx.com/) is column-oriented and has both on-disk
and in-memory capabilities http://kx.com/faq/#6 . It's around
since 1998 and both column and row oriented databases are still
around so I think it'd be more fair to say both are mature technologies.