Re: Very slow bytea data extraction

From: "msmbarabino(at)virgilio(dot)it" <msmbarabino(at)virgilio(dot)it>
To: pgsql-performance(at)postgresql(dot)org
Subject: Re: Very slow bytea data extraction
Date: 2007-02-23 17:44:27
Message-ID: 110efb42d61.msmbarabino@virgilio.it
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>If you look at the "actual time" it's completing very quickly indeed.
So
>- it must be something to do with either:
>1. Fetching/formatting
the data
>>2. Transferring the data to the client.

I do agree.

>What
happens if you only select half the rows? Does the time to run the
>select halve?

Yes, it does.
Using pgAdmin, the time to get all 36
rows is about 67500ms while it's 24235ms to get only 18 rows.

Massimo

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