Merlin,
Thanks!
> The takeaway is that for this query I'm seeing end to end query
> execution improvement of 58% in the worst case (warm cache) and 20x or
> more in the best case when the cache is cold: that 22 sec time is
> unpredictable and can run into the minutes as the index randomizes the
>
On Thu, Aug 16, 2012 at 5:20 PM, Josh Berkus wrote:
> I'm mainly looking for numbers for the 9.2 release. Like, "up to 14X
> speedup on data warehousing queries".
OK:
I work in the multi family industry and we have a large database which
we are organizing into an on-demand OLAP style data delive
On 8/15/12 3:28 PM, Merlin Moncure wrote:
> Aside: the performance gains I'm seeing for IOS are nothing short of
> spectacular.
Do you have some metrics? I could use them for publicity stuff.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
--
Sent via pgsql-hackers mailing list (
Merlin Moncure writes:
> If you create an index like this:
> create index on foo(a,b,v) where d = some_constant;
> there is no way to get an IOS on the index: you have to supply a the
> partial index exclusionary value to get the value of the index and
> that fools the IOS chooser because it doesn
