Re: Merging postgresql.conf and postgresql.auto.conf

On Thu, Jan 22, 2015 at 11:41 AM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> On Wed, Jan 21, 2015 at 9:43 PM, Sawada Masahiko <sawada(dot)mshk(at)gmail(dot)com>
> wrote:
>>
>> On Wed, Jan 21, 2015 at 3:38 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
>> wrote:
>> > On Tue, Jan 20, 2015 at 9:38 PM, Robert Haas <robertmhaas(at)gmail(dot)com>
>> > wrote:
>> >
>> >
>> > The reason why "sourcefile" and "sourceline" are not sufficient is that
>> > they can only give the information about the setting in last file it is
>> > present. Assume max_connections (or any other setting) is available
>> > in both postgresql.conf and postgresql.auto.conf, then it will display
>> > the information about the setting in postgresql.auto.conf, so now user
>> > might not be able to decide whether that is the setting he want to
>> > retain
>> > unless he knows the information about setting in postgresql.conf.
>> >
>> > Now as I have suggested upthread, that we can have a new view
>> > pg_file_settings which will display information about settings even
>> > when there exists multiple entries for the same in different files.
>> >
>> > I think adding such information to existing view pg_settings would
>> > be difficult as the same code is used for show commands which
>> > we don't want to change.
>> >
>>
>> I think this new view is updated only when postmaster received SIGHUP
>> or is started.
>> And we can have new function like pg_update_file_setting() which
>> updates this view.
>>
>
> If that is doable without much complication, then it might not be bad
> idea to just add additional columns to existing view (pg_settings). I
> think you can once evaluate the details like what additional columns
> (other than what pg_settings has) are required and how you want to
> update them. After doing so further discussion could be more meaningful.
>
>

I have posted mail as another thread to discuss about this.
<CAD21AoA8_MEjMNDHCEKT8CDyFUp8FpBoxAP0N0-LXErvV7fZXg(at)mail(dot)gmail(dot)com>

Regards,

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Sawada Masahiko