Re: Strange behavior with leap dates and centuries BC - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Strange behavior with leap dates and centuries BC
Date
Msg-id 200803022136.m22LaEl21489@momjian.us
Whole thread Raw
In response to Re: Strange behavior with leap dates and centuries BC  (Bernd Helmle <mailings@oopsware.de>)
List pgsql-hackers
Bernd Helmle wrote:
> --On Montag, Februar 25, 2008 14:04:18 -0500 Tom Lane <tgl@sss.pgh.pa.us> 
> wrote:
> 
> > The other issue is whether to throw error for year zero, rather than
> > silently interpreting it as 1 BC.  I can't recall whether that behavior
> > was intentional at the time, but given our current rather strict
> > interpretation of date validity checking, it hardly seems like a good
> > idea now.  What I suggest is that we throw error in 8.4 and beyond,
> > but not back-patch that change, so as to avoid introducing a behavioral
> > change in minor releases.
> 
> That sounds reasonable. I'm still trying to find out how it was managed to 
> get such a date into the database, since it seems not to be intended 
> behavior by the client. Maybe it's an errorneous to_date() formatting.

Tom has applied a fix for this to CVS HEAD and back branches.

--  Bruce Momjian  <bruce@momjian.us>        http://momjian.us EnterpriseDB
http://postgres.enterprisedb.com
 + If your life is a hard drive, Christ can be your backup. +


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