Is call_end - call_start a integer, maybe the range is to big and it is
eval'd as NULL or false. shrug.
On Tue, 17 Sep 2002, Gelu Gogancea wrote:
> Hi,
> > One thing I'd check: what happens if t_calllog_calls.id is NULL?
> ...is not count.
>
> Regards,
>
> Gelu
> _____________________________________________________
> G.NET SOFTWARE COMPANY
>
> Permanent e-mail address : gg@stripped
> gelugogancea@stripped
> ----- Original Message -----
> From: "Brian Reichert" <reichert@stripped>
> To: "Richard Unger" <runger@stripped>
> Cc: <mysql@stripped>
> Sent: Tuesday, September 17, 2002 10:16 PM
> Subject: Re: aggregate functions producing bad data
>
>
> > On Tue, Sep 17, 2002 at 11:59:42AM -0700, Richard Unger wrote:
> > > My query:
> > >
> > > SELECT
> > > count(id),
> > > count( IF(call_end - call_start > 5, id, NULL) ),
> > > count( IF(call_end - call_start <= 5, id, NULL) )
> > > FROM
> > > t_calllog_calls;
> > >
> > > My result:
> > >
> > > 1994
> > > 1956
> > > 35
> > >
> > > However, 1956 + 35 != 1994.
> > >
> > > Running MySQL 3.23.49-nt
> >
> >
> > > Cheers,
> > > Rich
> >
> > --
> > Brian 'you Bastard' Reichert <reichert@stripped>
> > 37 Crystal Ave. #303 Daytime number: (603) 434-6842
> > Derry NH 03038-1713 USA Intel architecture: the left-hand path
> >
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