Re: Why could different data in a table be processed with different performance?

From: Fabio Pardi <f(dot)pardi(at)portavita(dot)eu>
To: Vladimir Ryabtsev <greatvovan(at)gmail(dot)com>
Cc: pgsql-performance(at)lists(dot)postgresql(dot)org
Subject: Re: Why could different data in a table be processed with different performance?
Date: 2018-10-01 07:35:38
Message-ID: 4d244236-81ac-147e-67c6-42c6191d176b@portavita.eu
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On 28/09/18 21:51, Vladimir Ryabtsev wrote:
> > That means, if your block size was bigger, then you would have bigger space allocated for one single record.
> But if I INSERT second, third ... hundredth record in the table, the size remains 8K.

> So my point is that if one decides to increase block size, increasing storage space is not so significant, because it does not set minimum storage unit for a row.
>
ah, yes, correct. Now we are on the same page.

Good luck with the rest of things you are going to try out, and let us know your findings.

regards,

fabio pardi

> vlad

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