Re: BUG #14446: make_date with negative year

2016-12-04 14:40 GMT+01:00 Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>:

> abelisto(at)gmail(dot)com wrote:
>
> > Bug reference: 14446
> > Logged by: Andy Abelisto
> > Email address: abelisto(at)gmail(dot)com
> > PostgreSQL version: 9.5.5
> > Operating system: Linux Mint
> > Description:
> >
> > with t(x) as (values('1111-11-11 BC'::date)) select
> make_date(extract(year
> > from x)::int, extract(month from x)::int, extract(day from x)::int) from
> > t;
> > ERROR: date field value out of range: -1111-11-11
>
> make_date() has:
>
> /*
> * Note: we'll reject zero or negative year values. Perhaps
> negatives
> * should be allowed to represent BC years?
> */
> dterr = ValidateDate(DTK_DATE_M, false, false, false, &tm);
>
> With the attached patch it becomes (needs docs, tests):
>
> with t(x) as (values('1111-11-11 BC'::date),
> ('00001-11-11 bc'),
> ('00001-11-11'),
> ('1111-11-11')
> )
> select make_date(extract(year
> from x)::int, extract(month from x)::int, extract(day from x)::int) from
> t;
> make_date
> ───────────────
> 1111-11-11 BC
> 0001-11-11 BC
> 0001-11-11
> 1111-11-11
> (4 filas)
>
>
+1

Regards

Pavel

> --
> Álvaro Herrera https://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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