On 12/20/05, Nörder-Tuitje, Marcus <noerder-tuitje(at)technology(dot)de> wrote:
> MVCC blocks reading processes when data is modified.
That is incorrect. The main difference between 2PL and MVCC is that
readers are never blocked under MVCC.
greetings,
Nicolas
--
Nicolas Barbier
http://www.gnu.org/philosophy/no-word-attachments.html