Re: BUG #1927: incorrect timestamp returned

Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Right. We allow leap seconds for any date/time. Are you saying we
> > should only allow them for certain dates/times?
>
> No, his point is the funny roundoff behavior.
>
> regression=# select timestamp '2005-09-23 23:59:59.999999';
> timestamp
> ----------------------------
> 2005-09-23 23:59:59.999999
> (1 row)
>
> regression=# select timestamp '2005-09-23 23:59:59.9999999';
> timestamp
> ------------------------
> 2005-09-23 23:59:60.00
> (1 row)
>
> regression=# select timestamp '2005-09-23 23:59:59.99999999';
> timestamp
> ---------------------
> 2005-09-24 00:00:00
> (1 row)

Wow, that is funny roundoff behavior. Has anyone researched the cause?

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073