On Mon, May 19, 2008 at 08:19:17AM +0200, Zoltan Boszormenyi wrote:
The standard has a clause to specify depth-first order. However doing a
depth-first traversal would necessitate quite a different looking plan and
it's far less obvious (to me anyways) how to do it.
That would be even cooler
Martijn van Oosterhout írta:
On Mon, May 19, 2008 at 08:19:17AM +0200, Zoltan Boszormenyi wrote:
The standard has a clause to specify depth-first order. However doing a
depth-first traversal would necessitate quite a different looking plan and
it's far less obvious (to me anyways) how to do
Martijn van Oosterhout írta:
On Mon, May 19, 2008 at 08:19:17AM +0200, Zoltan Boszormenyi wrote:
The standard has a clause to specify depth-first order. However doing a
depth-first traversal would necessitate quite a different looking plan and
it's far less obvious (to me anyways) how to do
On Mon, May 19, 2008 at 11:56:17AM +0200, Zoltan Boszormenyi wrote:
From an implementation point of view, the only difference between
breadth-first and depth-first is that your tuplestore needs to be LIFO
instead of FIFO.
Are you sure? I think a LIFO tuplestore would simply return reversed
Martijn van Oosterhout írta:
On Mon, May 19, 2008 at 11:56:17AM +0200, Zoltan Boszormenyi wrote:
From an implementation point of view, the only difference between
breadth-first and depth-first is that your tuplestore needs to be LIFO
instead of FIFO.
Are you sure? I think a
On Sun, 2008-05-18 at 22:17 -0700, David Fetter wrote:
On Mon, May 19, 2008 at 12:21:20AM -0400, Gregory Stark wrote:
Zoltan Boszormenyi [EMAIL PROTECTED] writes:
Also, it seems there are no infinite recursion detection:
# with recursive x(level, parent, child) as (
select
Martijn van Oosterhout [EMAIL PROTECTED] writes:
From an implementation point of view, the only difference between
breadth-first and depth-first is that your tuplestore needs to be LIFO
instead of FIFO.
I think it's not so simple. How do you reconcile that concept with the join
plans like
Gregory Stark írta:
Martijn van Oosterhout [EMAIL PROTECTED] writes:
From an implementation point of view, the only difference between
breadth-first and depth-first is that your tuplestore needs to be LIFO
instead of FIFO.
I think it's not so simple. How do you reconcile that
