Re: xlog location arithmetic

Andrew Dunstan <andrew@dunslane.net>

From: Andrew Dunstan <andrew@dunslane.net>

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

Cc: Magnus Hagander <magnus@hagander.net>, Euler Taveira de Oliveira <euler@timbira.com>, Robert Haas <robertmhaas@gmail.com>, Pgsql Hackers <pgsql-hackers@postgresql.org>

Date: 2011-12-23T15:13:42Z

Lists: pgsql-hackers


On 12/23/2011 10:05 AM, Tom Lane wrote:
> Magnus Hagander<magnus@hagander.net>  writes:
>>> At this point, my question is: do we want to support the lsn data type idea or
>>> a basic function that implements the difference between LSNs?
>> Personally I think a function is enough - it solves the only case that
>> I've actually seen. But a datatype would be a more complete solution,
>> of course - but it seems a bit of an overkill to me. Not really sure
>> which way we should go - I was hoping somebody else would comment as
>> well..
> I too think a datatype is overkill, if we're only planning on providing
> one function.  Just emit the values as numeric and have done.
>
> 			

+1.

cheers

andrew