Re: [GENERAL] FM format modifier does not remove leading zero from year

Guy Rouillier wrote:
> On 1/6/2010 3:29 PM, Tom Lane wrote:
> > Guy Rouillier<guyr-ml1@burntmail.com>  writes:
> >> Oracle states clearly in the SQL Reference manual:
> >
> >> "A modifier can appear in a format model more than once. In such a case,
> >> each subsequent occurrence toggles the effects of the modifier."
> >
> > *Toggles* the effect of the modifier?  Egad, what drunken idiot chose
> > that specification?
> 
> Eh, tomato, tomahto.  If you assume that someone will strip leading 
> zeroes consistently, the Oracle approach makes sense.  That would be a 
> reasonable assumption to make; why would I strip the zero off the month 
> but leave it on the day?  So, in the unusual case that you want to do 
> such a thing, you are asked to use a second occurrence of FM to turn 
> zero suppression back off.

I have developed the attached patch which implements FM control of YYY,
YY, and Y specifications.  I also documented that we do not match
Oracle's toggle behavior.  There are a few effects on regression test
output which are part of this patch.

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

  + If your life is a hard drive, Christ can be your backup. +