On Wed, Oct 19, 2016 at 08:17:46PM -0400, Robert Haas wrote:
> On Wed, Oct 19, 2016 at 12:59 PM, Bruce Momjian <bruce@momjian.us> wrote:
> > Uh, vacuum_defer_cleanup_age sets an upper limit on how long, in terms
> > of xids, that a standby query can run before cancel, like
> > old_snapshot_threshold, no?
>
> No, not really. It affects the behavior of the master, not the standby.
But it controls when/if cancels happen on the standby.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
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