On Mon, Apr 4, 2016 at 6:45 PM, Andres Freund <andres@anarazel.de> wrote: > On 2016-04-04 10:35:34 +0100, Simon Riggs wrote: >> On 4 April 2016 at 09:28, Fujii Masao <masao.fujii@gmail.com> wrote: >> > Barring any objections, I'll commit this patch. > > No objection here either, just one question: Has anybody thought about > the ability to extend this to do per-database syncrep?
Nope at least for me... You'd like to extend synchronous_standby_names so that users can specify that per-database?
As requested, I did consider whether we could have syntax for per-database settings.
ISTM that it is already possible to have one database in async mode and another in sync mode, using settings of synchronous_commit.
The easiest way to have per-database settings if you want more is to use different instances. Adding a dbname into the syntax would complicate it significantly and even if we agreed that, I don't think it would happen for 9.6. The lack of per-database settings is not a blocker for me.
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Simon Riggs http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
