On Wed, Sep 4, 2013 at 11:56 PM, Andres Freund <andres@2ndquadrant.com> wrote:
> On 2013-09-04 10:53:19 -0400, Tom Lane wrote:
>> "Tsunakawa, Takayuki" <tsunakawa.takay@jp.fujitsu.com> writes:
>> > I propose a tiny fix to clarify this. Please find the attached patch.
>>
>> That's not an accurate description of what happens, though.
>> AFAIR, we do not throw away pg_stats files as a result of recovery.
>
> StartupXLOG() does a pgstat_reset_all() in the if (InRecovery) branch.
Yes. And this causes one problem that the statistics data would be reset
at the start after the clean shutdown of the standby server.
Regards,
--
Fujii Masao