BUG in 7.1.3 (fwd)

I think I  have found a bug in version 7.1.3. (I have installed  binary
rpms from postgres site on rh7.1)

Here is the DB and some sample entries.


CREATE TABLE "timetest" (
    "id" serial primary key,
    "timebegin" time,
    "timeend" time
    );

insert into timetest (timebegin,timeend) values ('12:00:20','12:01:00');
insert into timetest (timebegin,timeend) values ('14:00:20','14:02:00');
insert into timetest (timebegin,timeend) values ('15:00:00','15:00:40');

WORKS


THIS SELECT DOESN'T WORK:
select  sum(timeend-timebegin) as totaltime from timetest;

HERE IS WHAT POSTGRES REPORT:

timetest=# select  sum(timeend-timebegin) as totaltime from timetest;
ERROR:  Unable to select an aggregate function sum(time)
timetest=# select version();
                           version
-------------------------------------------------------------
 PostgreSQL 7.1.3 on i686-pc-linux-gnu, compiled by GCC 2.96
(1 row)

timetest=#

ON POSTGRES 7.0.3
timetest=# select  sum(timeend-timebegin) as totaltime from timetest;
 totaltime
-----------
 00:03
(1 row)

timetest=# select version();
                           version
-------------------------------------------------------------
 PostgreSQL 7.0.3 on i686-pc-linux-gnu, compiled by gcc 2.96
(1 row)

ascor=#

Hope this can help to fix the BUG!

Alex