On 10/28/2014 04:01 PM, Heikki Linnakangas wrote:
Moving on to other issues, isn't 128 bits too small to store the squares of the processed numbers? That could overflow..
Yeah, which is why stddev_*(int8) and var_*(int8) still have to use Numeric in the aggregate state. For the int2 and int4 versions it is fine to use __int128_t.
Andreas -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
