On Sat, Sep 7, 2013 at 5:08 AM, Philip Martin <philip.mar...@wandisco.com> wrote: >... > Note that we have to save the original nodes in the temporary table even > though we don't yet know that they will be needed. In this case a later > move is going to refer to original A but we don't know that is going to > happen. For this to work all drives have to pre-emptively store all > replaced nodes until the end of the edit.
That was asked and answered last month. Maybe two months ago. -g
