2017-09-02 18:10 GMT+02:00 Melvin Davidson <melvin6...@gmail.com>: > > On Sat, Sep 2, 2017 at 11:54 AM, Francisco Olarte <fola...@peoplecall.com> > wrote: > >> On Sat, Sep 2, 2017 at 4:16 PM, Олег Самойлов <ol...@mipt.ru> wrote: >> > Hi all. I have silly question. Look at "numeric" type. According to >> > docs it must be "up to 131072 digits before the decimal point; up to >> > 16383 digits after the decimal point". Well, lets see. >> > >> > => select 1::numeric/3; >> > ?column? >> > ------------------------ >> > 0.33333333333333333333 >> >> => select 1::numeric(100,90)/3; >> ?column? >> ------------------------------------------------------------ >> ---------------------------------- >> 0.333333333333333333333333333333333333333333333333333333333 >> 333333333333333333333333333333333 >> (1 row) >> >> It's probably doing 1(integer) => double precioson => numeric(20) or >> something similar if you do not specify. >> >> Francisco Olarte. >> >> >> -- >> Sent via pgsql-general mailing list (pgsql-general@postgresql.org) >> To make changes to your subscription: >> http://www.postgresql.org/mailpref/pgsql-general >> > > > > *Franciso,* > *Per the docs, is is not "must be', it is "up to 131072 digits before the > decimal point; up to 16383 digits after the decimal point".* > > *https://www.postgresql.org/docs/9.6/static/datatype-numeric.html#DATATYPE-NUMERIC-TABLE > <https://www.postgresql.org/docs/9.6/static/datatype-numeric.html#DATATYPE-NUMERIC-TABLE>* > > *YOU have specified a precision of numeric(100,90), which means 90 > decimals and that is exactly what you got!* > > *The result is correct, so what is your question?* > > -- > *Melvin Davidson* > I reserve the right to fantasize. Whether or not you > wish to share my fantasy is entirely up to you. >
The original snippet reads: select 1::numeric/3; And I think Francisco is asking why only 20 digits. -- Vincenzo Romano - NotOrAnd.IT Information Technologies -- NON QVIETIS MARIBVS NAVTA PERITVS
