From: | Jaime Casanova <jaime(at)2ndquadrant(dot)com> |
---|---|
To: | Rodrigo Barboza <rodrigombufrj(at)gmail(dot)com> |
Cc: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Query not using index for user defined type |
Date: | 2013-04-15 20:27:07 |
Message-ID: | CAJKUy5gdewPX2Fs+A=HOv_D39SuY1-kHnBV=O=zAdgqocNxXKQ@mail.gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
On Mon, Apr 15, 2013 at 3:08 PM, Rodrigo Barboza
<rodrigombufrj(at)gmail(dot)com> wrote:
>
> Here is the explain analyze with 1000 entries:
>
> explain analyze select * from mytable where a > 120::mytype and a <
> 530::mytype;
>
I'm not sure this is appropiate for -hackers, maybe should post on -general.
Also provide scripts with the creation of the datatype and/or the
OPERATOR FAMILY
anyway, this explain is completely useless to prove your point. if you
are selecting almost half of the table it will use a seq scan. try
again with more rows in the table and a narrow filter
--
Jaime Casanova www.2ndQuadrant.com
Professional PostgreSQL: Soporte 24x7 y capacitación
Phone: +593 4 5107566 Cell: +593 987171157
From | Date | Subject | |
---|---|---|---|
Next Message | Jaime Casanova | 2013-04-15 20:32:29 | Re: COPY and Volatile default expressions |
Previous Message | Tom Lane | 2013-04-15 20:21:31 | Re: COPY and Volatile default expressions |