Re: pg_resetxlog to clear backup start/end locations.

On Wed, Jun 25, 2014 at 02:08:26PM +0900, Kyotaro HORIGUCHI wrote:
> Hello, thank you for the suggestion.
> 
> I dont' touch what '-n' option shows and rewrite documents for
> the option a bit. And '-n' won't show the changes of backup
> location.
> 
> =======
> > > There are some changes which haven't been shown by '-n' option,
> > > even not displayed at all. I think these should be shown by
> > > '-n'. I suppose this is a kind of bug but fixing it seems to be a
> > > kind of 'feature change'..
> > >
> > > Any suggestions?
> > 
> > This seems the problem of the document and the help message of -n option.
> > According to the source code, -n option displays only the values that -e, -l,
> > -m -o, -O, and -x options change. The values -f option forcibly changes are
> > not be shown in -n option. I'm not sure if this is an oversight in 108e399...
> 
> The html(sgml) document says that, 
> 
> === share/doc/html/app-pgresetxlog.html
> | The -n (no operation) option instructs pg_resetxlog to print
> | the values reconstructed from pg_control and values about to be
> | changed, and then exit without modifying anything. This is
> | mainly a debugging tool, but can be useful as a sanity check
> | before allowing pg_resetxlog to proceed for real.
> 
> This seems to have same meaning to the help message. "For
> debugging use" also supports your way of understanding the
> option, I suppose.
> 
> > Anyway, I think that making -n option display all the values that -f option
> > changes would be useful. But since that's not a bugfix, we should apply it
> > only in HEAD.
> 
> Agreed.

Is this a TODO item?

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://enterprisedb.com
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