Horton

Re: xlog location arithmetic

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Magnus Hagander <magnus@hagander.net>, Euler Taveira de Oliveira <euler@timbira.com>, Pgsql Hackers <pgsql-hackers@postgresql.org>
Date: 2011-12-23T15:18:21Z
Lists: pgsql-hackers 
Robert Haas <robertmhaas@gmail.com> writes:
> On Fri, Dec 23, 2011 at 10:05 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> I too think a datatype is overkill, if we're only planning on providing
>> one function.

> Are there any other functions we ought to provide?

Even if there are several, what exact advantage does a datatype offer
over representing LSN values as numerics?  It seems to me to be adding
complication and extra code (I/O converters at least) for very little
gain.

			regards, tom lane