Re: doc: improve PG 12 to_timestamp()/to_date() wording

On Tue, Apr 30, 2019 at 07:14:04PM -0500, Justin Pryzby wrote:
> On Tue, Apr 30, 2019 at 09:48:14PM +0300, Alexander Korotkov wrote:
> > I'd like to add couple of comments from my side.
> 
> > > -       returns an error because the second template string space is consumed
> > > -       by the letter <literal>J</literal> in the input string.
> > > +       returns an error because the second space in the template string consumes
> > > +       the letter <literal>M</literal> from the input string.
> > 
> > Why <literal>M</literal>?  There is no letter "M" is input string.
> > The issue here is that we already consumed "J" from "JUN" and trying
> > to match "UN" to "MON".  So, I think we should live
> > <literal>J</literal> here.  The rest of this change looks good.
> 
> Seems like I confused myself while resolving rebase conflict.
> 
> Thanks for checking.

Find attached updated patch, which seems to still be needed.

This was subsumed and now extracted from a larger patch, from which Michael at
one point applied a few hunks.
I have some minor updates based on review from Andres, but there didn't seem to
be much interest so I haven't pursued it.
https://www.postgresql.org/message-id/20190520182001.GA25675%40telsasoft.com

Justin