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Re: Another idea for dealing with cmin/cmax

From: Martijn van Oosterhout <kleptog(at)svana(dot)org>
To: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
Cc: ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>,"Jim C(dot) Nasby" <jim(at)nasby(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: Another idea for dealing with cmin/cmax
Date: 2006-09-29 09:52:59
Message-ID: 20060929095259.GA8702@svana.org (view raw or flat)
Thread:
Lists: pgsql-hackers
On Fri, Sep 29, 2006 at 09:35:31AM +0100, Heikki Linnakangas wrote:
> We could get rid of t_hoff, because we should always be able to 
> calculate the header size. Then we're down to 18 bytes.

Without t_hoff, how do you know the size of the null bitmap? You could
probably do it only if you assume the null bitmap, if present, always
covers all the columns...

Have a nice day,
-- 
Martijn van Oosterhout   <kleptog(at)svana(dot)org>   http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.

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Subject: Re: Another idea for dealing with cmin/cmax
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