Re: switch UNLOGGED to LOGGED

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Leonardo Francalanci <m_lists(at)yahoo(dot)it>
Cc: Alvaro Herrera <alvherre(at)commandprompt(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: switch UNLOGGED to LOGGED
Date: 2011-05-10 12:49:12
Message-ID: BANLkTinAg06kK3yrOWA0w1LrPpgP3v22Tw@mail.gmail.com
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On Tue, May 10, 2011 at 8:03 AM, Leonardo Francalanci <m_lists(at)yahoo(dot)it> wrote:
>> I don't  think making xinfo shorter will save anything, because
>> whatever follows it is  going to be a 4-byte quantity and therefore
>> 4-byte aligned.
>
>
> ups, didn't notice it.
>
> I'll split    xinfo into:
>
> uint16   xinfo;
> uint16   presentFlags;
>
>
> I guess it helps with the reading? I mean, instead
> of having a single uint32?

My feeling would be just keep it as uint32. Breaking it up into
chunks doesn't seem useful to me.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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