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From: Gauri Kanekar <meetgaurikanekar@gmail.com>
To: Devrim GÜNDÜZ <devrim@gunduz.org>
Cc: pgsql-performance@postgresql.org
Subject: Re: Hot Issue
Date: Wed, 2 Jul 2008 18:41:38 +0530
Message-ID: <7e4ba9550807020611x3dac7fffw8497d168c7a0e9d8@mail.gmail.com> (raw)
In-Reply-To: <1215004084.2842.32.camel@laptop.gunduz.org>
References: <7e4ba9550807020531w5480956fs2a1b5b630babda41@mail.gmail.com>
	<1215004084.2842.32.camel@laptop.gunduz.org>

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@gunduz.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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