Re: [HACKERS] [PATCH v1] Add and report the new "in_hot_standby" GUC pseudo-variable.

On Tuesday, March 21, 2017 11:50:38 PM EDT Peter Eisentraut wrote:
> On 3/17/17 13:56, Elvis Pranskevichus wrote:
> > Currently, clients wishing to know when the server exits hot standby
> > have to resort to polling, which is often suboptimal.
> > 
> > This adds the new "in_hot_standby" GUC variable that is reported via
> > a ParameterStatus message.
> 
> The terminology chosen here is not very clear.  What is the opposite
> of "in hot standby"?  Warm standby?  Cold standby?  Not standby at
> all? Promoted to primary (writable)?

The opposite means primary.  I can flip the GUC name to "is_primary", if 
that's clearer.
                              Elvis