Skip site navigation (1) Skip section navigation (2)

Re: Trying to track down weird query stalls

From: dan(at)sidhe(dot)org
To: "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com>
Cc: "Robert Haas" <robertmhaas(at)gmail(dot)com>,pgsql-performance(at)postgresql(dot)org
Subject: Re: Trying to track down weird query stalls
Date: 2009-03-30 19:42:25
Message-ID: 57654.199.172.169.17.1238442145.squirrel@localhost (view raw or flat)
Thread:
Lists: pgsql-performance
> On Mon, Mar 30, 2009 at 12:42 PM,  <dan(at)sidhe(dot)org> wrote:
>> Arguably in this case the actual query should run faster than the
>> EXPLAIN
>> ANALYZE version, since the cache is hot. (Though that'd only likely
>> shave
>> a few dozen ms off the runtime)
>
> Joining a lot of tables together?  Could be GEQO kicking in.

Only if I get different query plans for the query depending on whether
it's being EXPLAIN ANALYZEd or not. That seems unlikely...

-Dan

In response to

Responses

pgsql-performance by date

Next:From: Scott MarloweDate: 2009-03-30 19:47:17
Subject: Re: Trying to track down weird query stalls
Previous:From: Scott MarloweDate: 2009-03-30 19:38:03
Subject: Re: Trying to track down weird query stalls

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group