Dimitri Fontaine wrote:
> Bruce Momjian <br...@momjian.us> writes:
>> Doesn't the system already adjust the delay based on the length of slave
>> transactions, e.g. max_standby_delay.  It seems there is no need for a
>> user switch --- just max_standby_delay really high.
> 
> Well that GUC looks like it allows to set a compromise between HA and
> reporting, not to say "do not ever give the priority to the replay while
> I'm running my reports". At least that's how I understand it.

max_standby_delay=-1 does that. The documentation needs to be updated to
reflect that, it currently says:

> There is no wait-forever setting because of the potential for deadlock which 
> that setting would introduce. This parameter can only be set in the 
> postgresql.conf  file or on the server command line. 

but that is false, -1 means wait forever. Simon removed that option at
one point, but it was later put back and apparently the documentation
was never updated.

-- 
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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