On Thu, Sep 24, 2015 at 1:29 PM, Feng Tian <ft...@vitessedata.com> wrote:
> Hi, > > Here is an extension for 64 and 128 bit decimal types using IEEE decimal > floating point. The original idea/implementation is from > http://pgxn.org/dist/pgdecimal/1.0.0/ Original thread for dicussion is > at > > > http://www.postgresql.org/message-id/CAFj8pRApakE6s-H2yJcXD=ubpukwa6i7rx4vuvtb4puhga5...@mail.gmail.com > > I reimplemented 64/128 bits instead of 32/64 bits. The code use decNumber > library instead of _Decimal64/128 of GCC. Also added more operators. > > 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. > > Agains, thanks to the original author okbob (Pavel). Enjoy. > > Thanks, > Feng > > Ah, link. https://github.com/vitesse-ftian/pgdecimal Thanks, Feng
