BUG #4316: 13 seconds to complete SELECT * FROM pg_catalog.pg_attribute

From: "blueos" <blueos(at)free(dot)fr>
To: pgsql-bugs(at)postgresql(dot)org
Subject: BUG #4316: 13 seconds to complete SELECT * FROM pg_catalog.pg_attribute
Date: 2008-07-18 09:56:36
Message-ID: 200807180956.m6I9uaSO057150@wwwmaster.postgresql.org
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The following bug has been logged online:

Bug reference: 4316
Logged by: blueos
Email address: blueos(at)free(dot)fr
PostgreSQL version: 8.3.3
Operating system: Linux
Description: 13 seconds to complete SELECT * FROM
pg_catalog.pg_attribute
Details:

On a server with 5 databases (a schema containing 59 tables and 58
sequences),
a SELECT * FROM pg_catalog.pg_attribute takes 13s to complete.

It returns 4063 lines.

The server is a high end Intel dual core with 4Go of memory, the database is
only about 1MB of data! on this machine, a typical query returns in less
than 60ms.

A strange performance issue.

Regards,
Guillaume

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