| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Васильев Дмитрий <d(dot)vasilyev(at)postgrespro(dot)ru>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Performance degradation in commit ac1d794 |
| Date: | 2016-03-18 09:52:22 |
| Message-ID: | CA+TgmoZQwJBKOO+aw+CS=iwKOQbZ-8cFoisDNEgdR5TXLqO-EA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Mar 17, 2016 at 10:57 AM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> On 2016-03-17 09:01:36 -0400, Robert Haas wrote:
>> 0001: Looking at this again, I'm no longer sure this is a bug.
>> Doesn't your patch just check the same conditions in the opposite
>> order?
>
> Yes, that's what's required
I mean, they are just variables. You can check them in either order
and get the same results, no?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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