On 03/13/2017 09:03 AM, Andres Freund wrote:

On 2017-03-12 05:40:51 +0100, Tomas Vondra wrote:
I wanted to do a bit of testing and benchmarking on this, but 0004 seems to
be a bit broken.

Well, "broken" in the sense that it's already outdated, because other
stuff that got merged.

Yes, that's what I meant. Sorry for not being quite clear.

The patch does not apply anymore - there are some conflicts
in execQual.c, but I think I fixed those. But then I ran into a bunch of
compile-time errors, because some of the executor nodes still reference bits
that were moved elsewhere.

Updated patch attached.  Note that this patch has two changes I've not
yet evaluated performance-wise.

And which are those?

I plan to do a bit of testing / benchmarking on this later this week, depending on other testing already happening on my machine.


Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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