Re: pg_start_backup and pg_stop_backup Re: Re: [COMMITTERS] pgsql: Make CheckRequiredParameterValues() depend upon correct

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Simon Riggs <simon@2ndQuadrant.com>, Robert Haas <robertmhaas@gmail.com>, Fujii Masao <masao.fujii@gmail.com>, Alvaro Herrera <alvherre@commandprompt.com>, Josh Berkus <josh@agliodbs.com>, pgsql-hackers@postgresql.org
Date: 2010-04-29T19:33:50Z
Lists: pgsql-hackers
Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> Tom Lane wrote:
>> Yeah.  ISTM the real bottom line here is that we have only a weak grasp
>> on how these features will end up being used; or for that matter what
>> the common error scenarios will be.  I think that for the time being
>> we should err on the side of being permissive.  We can tighten things
>> up and add more nanny-ism in the warnings later on, when we have
>> more field experience.

> Ok, here's a proposed patch. Per discussion, it relaxes the checks in
> pg_start/stop_backup() so that they can be used as long as wal_level >=
> 'archive', even if archiving is disabled.

This patch seems reasonably noncontroversial (except possibly for
message wording, which we can fine-tune later anyway).  Please apply.
9.0beta1 is going to get wrapped in only a few hours.

BTW, the documentation for these functions might need a bit of adjustment.

			regards, tom lane