Search Postgresql Archives

Re: Simple Query not using Primary Key Index

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



EXPLAIN ANALYZE does not tell me much. It doesn't say why the planner opts for not using the Primary key index.


On Mon, Feb 6, 2017, 6:23 PM Alban Hertroys <haramrae@xxxxxxxxx> wrote:

> On 7 Feb 2017, at 0:16, Podrigal, Aron <aronp@xxxxxxxxxxxxxxxxxx> wrote:
>
> Hi,
>
> I noticed when I do a simple SELECT id FROM mytable WHERE id = 'cb81d070-4213-465f-b32e-b8db43b83a25'::UUID  Postgres does not use the primary key index and opts for a Seq Scan.
>
> I of course did VACUUM ANALYZE and I have reset statistics But no sign. Is there any particular thing I should be looking at?

An EXPLAIN ANALYZE would be a good start.

Alban Hertroys
--
If you can't see the forest for the trees,
cut the trees and you'll find there is no forest.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux