Re: Parallel Sort

On 13 May 2013 15:28, Noah Misch <noah@leadboat.com> wrote:

> The heavyweight locking mechanism will need to be aware of the association
> between the master and its workers.

Not sure I can see why that would be true.

ISTM that the workers need to be restricted in various ways from a
full-functioned master. If the workers can do things that conflict
with the master and/or each other, we're going to have all kinds of
hurt.

The key is going to be deciding what the restrictions are and then
working out how to enforce them.

--Simon Riggs                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services