From: | "Mkrtchyan, Tigran" <tigran(dot)mkrtchyan(at)desy(dot)de> |
---|---|
To: | Josh Berkus <josh(at)agliodbs(dot)com> |
Cc: | Andres Freund <andres(at)anarazel(dot)de>, pgsql-performance <pgsql-performance(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Subject: | Re: 9.5alpha1 vs 9.4 |
Date: | 2015-07-06 21:14:31 |
Message-ID: | bd8af33c-6683-433a-9526-dcd8e618ec32@email.android.com |
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Lists: | pgsql-performance |
On Jul 6, 2015 18:45, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
>
> On 07/05/2015 10:16 AM, Mkrtchyan, Tigran wrote:
> > Thanks for the hin. My bad. The backup db and 9.5 had a different type on
> > one of the foreign-key constrains char(36) vs varchar(36).
> >
> > The schema was screwed couple of days ago, byt performance numbers I checked only
> > after migration to 9.5.
>
> Thank you for testing!
>
> Can you re-run your tests with the fixed schema? How does it look?
With fixed schema performance equal to 9.4. I have updated my code to use ON CONFLICT statement. ~5% better compared with INSERT WHERE NOT EXIST. Really cool! Thanks.
Tigran.
>
> --
> Josh Berkus
> PostgreSQL Experts Inc.
> http://pgexperts.com
>
>
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