Re: ALTER SYSTEM SET command to change postgresql.conf parameters (RE: Proposal for Allow postgresql.conf values to be changed via SQL [review]) - Mailing list pgsql-hackers

From Greg Stark
Subject Re: ALTER SYSTEM SET command to change postgresql.conf parameters (RE: Proposal for Allow postgresql.conf values to be changed via SQL [review])
Date
Msg-id CAM-w4HOee7Byz2rV9M-NDskDVsqTeYJeXow0tsdCuZk72A-3sw@mail.gmail.com
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In response to Re: Re: ALTER SYSTEM SET command to change postgresql.conf parameters (RE: Proposal for Allow postgresql.conf values to be changed via SQL [review])  (Dimitri Fontaine <dimitri@2ndQuadrant.fr>)
Responses Re: Re: ALTER SYSTEM SET command to change postgresql.conf parameters (RE: Proposal for Allow postgresql.conf values to be changed via SQL [review])
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We don't need per guc locking. This is the whole objection Tom had about this patch being more complex than it has to be.

--
greg

On 1 Aug 2013 14:55, "Dimitri Fontaine" <dimitri@2ndquadrant.fr> wrote:
Greg Stark <stark@mit.edu> writes:
> I think people are going to laugh at us if an open source database
> software can't manage a simple flat file database of settings,
> especially one that is purely write-only and can be a simple dump of
> settings that are set by alter system.

So you say it's easier to implement per-GUC locking semantics correctly
when using a single file with multiple units of information that all are
of the same type? Interesting.

Maybe the storage should actually be a shared catalog, in fact.

Regards,
--
Dimitri Fontaine
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support


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