Re: Hot Issue

From: "Gauri Kanekar" <meetgaurikanekar(at)gmail(dot)com>
To: Devrim GÜNDÜZ <devrim(at)gunduz(dot)org>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Hot Issue
Date: 2008-07-02 13:11:38
Message-ID: 7e4ba9550807020611x3dac7fffw8497d168c7a0e9d8@mail.gmail.com
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How does it indicate if the entries qualify for hot update ??

hot have a limitation that it do not work if, the index column is updated.
But that not the case over here.

On Wed, Jul 2, 2008 at 6:38 PM, Devrim GÜNDÜZ <devrim(at)gunduz(dot)org> wrote:

> On Wed, 2008-07-02 at 18:01 +0530, Gauri Kanekar wrote:
> > Checked out the performance of Hot on 30th June :
> >
> > relname n_tup_ins n_tup_upd n_tup_del
> > n_tup_hot_upd
> > n_live_tup n_dead_tup *table1* *15509156* *2884653* *0* *2442823*
> > *
> > 15509158* *68046* table2 434585 718472 0 642336 434703 16723 table3
> > 105546
> > 252143 0 233078 105402 4922
> <snip>
> >
> > Checked the performance of Hot on 2nd July :
> >
> > relname n_tup_ins n_tup_upd n_tup_del
> > n_tup_hot_upd
> > n_live_tup n_dead_tup *table1**15577724* *6237242* *0* *2924948*
> > *
> > 18460676* *131103* table2 435558 1579613 0 763397 1171497 42476
>
> Maybe those updates were not qualified for HOT between these days?
>
> Regards,
> --
> Devrim GÜNDÜZ
> devrim~gunduz.org, devrim~PostgreSQL.org, devrim.gunduz~linux.org.tr
> http://www.gunduz.org
>
>

--
Regards
Gauri

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