On 25 September 2015 at 08:29, Feng Tian <ft...@vitessedata.com> wrote:
> Compared to numeric type, decimal64 arithmetics is about 2x faster, > decimal128 is about 1.5x faster. However, the cast between decimal and > float4/8 is implemented rather naively and slow. As always, it depends on > workload, decimal may take more, or less space, may be slower if cast is > frequently performed. > Are you able to share the processor vendor, and perhaps some other specs of the machine you obtained these results from? Regards David Rowley -- David Rowley http://www.2ndQuadrant.com/ <http://www.2ndquadrant.com/> PostgreSQL Development, 24x7 Support, Training & Services