[check_postgres] some fixes and a check for replication slots

[Glyn Astill]

> From: Christoph Berg <myon at debian.org>

> To: Glyn Astill <glynastill at yahoo.co.uk>
> Cc: "check_postgres at bucardo.org" <check_postgres at bucardo.org>
> Sent: Wednesday, 8 June 2016, 20:16
> Subject: Re: [check_postgres] some fixes and a check for replication slots
> 
> Re: Glyn Astill 2016-06-01 
> <1932296388.5236885.1464796787427.JavaMail.yahoo at mail.yahoo.com>
> 
>>  Hi,
>> 
>>  A while back I had a few issues using the same_schema checks across 
> logically replicated nodes.  These were mainly due to the checks comparing oid 
> fields and I created a pull request with some fixes, but it gradually became a 
> mess as I made more commits to the fork; sorry about that.  I've separated 
> out that collection of commits here:
> 
> Hi Glyn,
> 
> to follow up here as well: thanks for the patches, and thanks for the
> patience! I should have tackled these already last year.
> 


Excellent, thanks for working through them, it's very much appreciated.


Glyn