Hi,
I have a (quite) big table with ~3M rows.
Every row has a NBPOINTS (int4) and a REASON (int4)
select sum(nbpoints) from points; it takes about 10s
select sum(nbpoints) from points group by reason it takes about 210s
Same table structure, same data on Oracle gives respectively 8 and 22
seconds.
Is there a way to optimize this ?
(REASON is indexed though I can see no interest in this query.)
TIA!
--
Jean-Christophe Boggio
cat@thefreecat.org
Independant Consultant and Developer
Delphi, Linux, Oracle, Perl