[Firebird-test] Error 104 from "GROUP BY" clause???

[TerryC <tch...@wy...>]

I have a query that generates an odd error message:

select s.description Schedule, s.s_date Beginning,
  r.days_on DaysOn, r.days_off DaysOff,
  sh.description Shift, sh.s_time ShiftStart, sh.e_time ShiftEnd
from schedules s
   join sched_rots sr on s.id = sr.sched_id
   join rotations r on r.id = sr.rot_id
   join shifts sh on sh.id = r.shift_id
group by s.description

The "group by" clause generates a "SQL Error 104: user name required"
message.  If I remove that line, the query executes flawlessly.  Whats up?

Running FB1.5RC5 on NT 4.0 Server, SP4.  Accessing via TCP/IP from Windows
2000 Pro, SP4.

Thanks much,
-Terry