On 26 January 2016 at 22:07, Magnus Hagander <mag...@hagander.net> wrote:

> In this case, mostly legacy compatibility. Making an app that works with
> versions that don't have pg_lsn have a nice path forward to the modern
> world. Being able to cast from pg_lsn to int8 can also make it easier to
> work with the values in the client application, though I don't need that
> for this particular one.
Wouldn't we need a uint8 type for that?

I guess we could just show people negative LSNs if the high bit is set
(that being rather unlikely) but still...

 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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