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Re: Padding on 64-bit

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: Bruce Momjian <bruce(at)momjian(dot)us>
Cc: Neil Conway <neilc(at)samurai(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PGSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Padding on 64-bit
Date: 2007-05-30 20:02:49
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
I think that's backwards. We *are* passing them by reference, we should
be considering passing them by value.


Bruce Momjian wrote:
> Added to TODO:
> * Consider allowing 64-bit integers to be passed by reference on 64-bit
>   platforms
> ---------------------------------------------------------------------------
> Neil Conway wrote:
>> On Tue, 2007-29-05 at 16:01 -0400, Tom Lane wrote:
>>> (I imagine someday we'll get around to allowing int8 to be pass-by-value
>>> on 64-bit platforms.)
>> This could really be a significant performance win: I'm planning to take
>> a look at doing it for 8.4.
>> -Neil
>> ---------------------------(end of broadcast)---------------------------
>> TIP 9: In versions below 8.0, the planner will ignore your desire to
>>        choose an index scan if your joining column's datatypes do not
>>        match

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