Re: PostgreSQL Process memory architecture

Hi Atri,

But TOAST only occur if the tuple size exceed 2KB, doesn't it?

Lior

-----Original Message-----
From: Atri Sharma [mailto:atri(dot)jiit(at)gmail(dot)com]
Sent: Monday, May 27, 2013 15:39
To: Ben Zeev, Lior
Cc: Stephen Frost; Pg Hackers
Subject: Re: [HACKERS] PostgreSQL Process memory architecture

On Mon, May 27, 2013 at 6:02 PM, Ben Zeev, Lior <lior(dot)ben-zeev(at)hp(dot)com> wrote:
> Hi Stephen,
>
> The case which I'm seeing is that I have an empty table without any
> rows, Create table test (
> Num Integer,
> C1 character varying(512),
> C2 character varying(512),
> C3 character varying(512));
>
> I create several partial indexes on this table:
>
> Create index(index_1_c1) on test(c1) where Num=1; Create
> index(index_2_c1) on test(c1) where Num=2; Create index(index_1_c2) on
> test(c1) where Num=1; Create index(index_2_c2) on test(c1) where
> Num=2;

It is just a hunch, but all of your attributes are character varying.
Could TOAST be an issue here?

Regards,

Atri

--
Regards,

Atri
l'apprenant