On Thu, Sep 1, 2011 at 10:27, Incorrect result from operator <wolfmoon@o2.pl
> wrote:
>
> SELECT ('2011-08-31'::date,'2011-08-31'::date) overlaps
> ('2011-08-1'::date,'2011-08-31'::date);
> Returns false, should return true.
>
According to the documentation, it should return false.
"Each time period is considered to represent the half-open interval start <=
time < end, unless start and end are equal in which case it represents that
single time instant. This means for instance that two time periods with only
an endpoint in common do not overlap."
http://www.postgresql.org/docs/current/static/functions-datetime.html
