On 22 September 2015 at 21:14, Alvaro Herrera
wrote:
> Robert Haas wrote:
> > On Tue, Sep 22, 2015 at 10:34 AM, Simon Riggs
> wrote:
>
> > > For 1, Gather makes most sense.
> >
> > Yeah, I'm leaning that way myself. Amit argued for "Parallel Gather"
> > but I think that's overkill. There can't
On 22 September 2015 at 20:34, Robert Haas wrote:
> On Tue, Sep 22, 2015 at 10:34 AM, Simon Riggs
> wrote:
> > Robert, thanks for asking. We'll be stuck with these words for some time,
> > user visible via EXPLAIN so this is important.
>
> I agree, thanks for taking an interest.
>
> > The main o
Robert Haas wrote:
> On Tue, Sep 22, 2015 at 10:34 AM, Simon Riggs wrote:
> > For 1, Gather makes most sense.
>
> Yeah, I'm leaning that way myself. Amit argued for "Parallel Gather"
> but I think that's overkill. There can't be a non-parallel gather,
> and long names are a pain.
"Gather" see
On Tue, Sep 22, 2015 at 10:34 AM, Simon Riggs wrote:
> Robert, thanks for asking. We'll be stuck with these words for some time,
> user visible via EXPLAIN so this is important.
I agree, thanks for taking an interest.
> The main operations are the 3 mentioned by Nicolas:
> 1. Send data from many
On 17 September 2015 at 05:07, Nicolas Barbier
wrote:
> 2015-09-17 Robert Haas :
>
> > 1. Exchange Bushy
> > 2. Exchange Inter-Operator (this is what's currently implemented)
> > 3. Exchange Replicate
> > 4. Exchange Merge
> > 5. Interchange
>
> > 1. ?
> > 2. Gather
> > 3. Broadcast (sorta)
> > 4
2015-09-17 Robert Haas :
> 1. Exchange Bushy
> 2. Exchange Inter-Operator (this is what's currently implemented)
> 3. Exchange Replicate
> 4. Exchange Merge
> 5. Interchange
> 1. ?
> 2. Gather
> 3. Broadcast (sorta)
> 4. Gather Merge
> 5. Redistribute
> 1. Parallel Child
> 2. Parallel Gather
> 3
On Thu, Sep 17, 2015 at 8:09 AM, Robert Haas wrote:
>
> Or, yet another option, we could combine the similar operators under
> one umbrella while keeping the things that are more different as
> separate nodes:
>
> 1, 2. Exchange (or Gather or Funnel)
> 3, 5. Distribute (or Redistribute or Intercha
On 2015-09-17 04:39, Robert Haas wrote:
1. Exchange Bushy
2. Exchange Inter-Operator (this is what's currently implemented)
3. Exchange Replicate
4. Exchange Merge
5. Interchange
Or taking inspiration from Greenplum, we could go with:
1. ?
2. Gather
3. Broadcast (sorta)
4. Gather Merge
5. Redi