On Fri, Jan 13, 2012 at 10:17 AM, Simon Riggs <simon@2ndquadrant.com> wrote:
> On Fri, Jan 13, 2012 at 2:03 PM, Robert Haas <robertmhaas@gmail.com> wrote:
>
>> Since the xmin horizon on the standby may precede the xmin horizon on
>> the master
>
> When hot_standby_feedback is turned on, the xmin of the standby is
> provided to the master to ensure the situation you describe never
> happens.
>
> Surely that means the problem is solved, if we can confirm the setting
> of the parameter. So this seems like a cleanup issues that can/should
> be resolved.
How do you respond to the concerns I raised about that approach in the
last sentence of my previous email?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company