On 24.10.2013 20:39, Josh Berkus wrote:
On 10/24/2013 04:15 AM, Pavan Deolasee wrote:
If we do what you are suggesting, it seems like a single line patch to me.
In XLogSaveBufferForHint(), we probably need to look at this additional GUC
to decide whether or not to backup the block.


Wait, what?  Why are we having an additional GUC?

I'm opposed to the idea of having a GUC to enable failback.  When would
anyone using replication ever want to disable that?

For example, if you're not replicating for high availability purposes, but to keep a reporting standby up-to-date.

- Heikki


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