Re: Proposal: knowing detail of config files via SQL

On Sat, Jan 31, 2015 at 4:56 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> David Johnston <david.g.johnston@gmail.com> writes:
>> On Fri, Jan 30, 2015 at 12:05 PM, David Fetter <david@fetter.org> wrote:
>>> Why might the contents of pg_settings be different from what would be
>>> in pg_file_settings, apart from the existence of this column?
>
>> The contents of pg_settings uses the setting name as a primary key.
>> The contents of pg_file_setting uses a compound key consisting of the
>> setting name and the source file.
>
> [ raised eyebrow... ]  Seems insufficient in the case that multiple
> settings of the same value occur in the same source file.  Don't you
> need a line number in the key as well?
>

Yep, a line number is also needed.
The source file and line number would be primary key of pg_file_settings view.
I need to change like that.

Regards,

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Sawada Masahiko