On Thu, Feb 18, 2016 at 9:45 PM, Craig Ringer <craig@2ndquadrant.com> wrote:
> That lets you make assertions about replication behaviour. It was built for
> BDR and I think we'll need something along those lines in core if/when any
> kind of logical replication facilities land, for things like testing
> failover slots, etc.
>
> The patch is at:
>
> http://git.postgresql.org/gitweb/?p=2ndquadrant_bdr.git;a=commit;h=d859de3b13d39d4eddd91f3e6f316a48d31ee0fe
>
> and might be something it's worth having in core as we expand testing of
> replication, failover, etc.
Maybe there is an advantage to have it, but that's hard to make an
opinion without a complicated test case. Both of those things could
clearly work with each other at first sight. PostgresNode can set up a
set of nodes and this patch would be in charge of more complex
scenarios where the same connection or transaction block is needed.
--
Michael