On Wed, Jul 6, 2016 at 6:06 PM, Andres Freund <and...@anarazel.de> wrote:
> Hm. We can't easily do that in the back-patched version; because a
> standby won't know to check for the flag . That's kinda ok, since we
> don't yet need to clear all-visible yet at that point of
> heap_update. But that better means we don't do so on the master either.

Is there any reason to back-patch this in the first place?

Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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