Re: Allow auto_explain to log to NOTICE

> On 17 Jul 2018, at 19:11, Andrew Dunstan <andrew.dunstan@2ndquadrant.com> wrote:
>
> On 07/17/2018 12:04 PM, Daniel Gustafsson wrote:

>> Since DEBUG is not a defined loglevel, it seems superfluous to include it here.
>> It’s also omitted from the documentation so it should probably be omitted from
>> here.
>>
>> +       {"debug", DEBUG2, true},
>
> I treated this like we do for client_min_messages and log_min_messages - the alias is there but I don;t think we
documentit either. 
>
> I don't mind removing it, was just trying to be consistent. It seems odd that we would accept it in one place but not
another.

Ooh..  I didn’t know that alias existed and didn’t find it when poking at the
code.  In that case I agree with you, the alias should stay so I withdraw that
comment.  I learned something new today =)

>>> I haven't added tests for auto_explain - I think that would be useful
>>> but it's a separate project.
>> Agreeing that this would be beneficial, the attached patch (to apply on top of
>> the patch in question) takes a stab at adding tests for this new functionality.
>>
>> In order to test plan output we need to support COSTS in the explain output, so
>> a new GUC auto_explain.log_costs is added.  We also need to not print the
>> duration, so as a hack this patch omits the duration if auto_explain.log_timing
>> is set to off and auto_explain.log_analyze is set off.  This is a hack and not
>> a nice overloading, but it seems overkill to add a separate GUC just to turn
>> off the duration, any better ideas on how support omitting the duration?
>
> Great, I'll check it out.

I’m not sure it’s worth adding this much to the code just to be able to test
it, but it seemed like a good excercise to write to have something to reason
about.

cheers ./daniel