| From: | Guillaume Lelarge <guillaume(at)lelarge(dot)info> |
|---|---|
| To: | "Fontana Daniel C(dot) (Desartec S(dot)R(dot)L(dot))" <desartecsrl(at)gmail(dot)com> |
| Cc: | pgadmin-support(at)lists(dot)postgresql(dot)org |
| Subject: | Re: function to_char |
| Date: | 2021-04-17 20:01:58 |
| Message-ID: | CAECtzeW2ybh0okryWwPfHW36eKZ0kR1-Hy29g8zfV9RKm2MPTg@mail.gmail.com |
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| Thread: | |
| Lists: | pgadmin-support |
Hi,
Le sam. 17 avr. 2021 à 15:05, Fontana Daniel C. (Desartec S.R.L.) <
desartecsrl(at)gmail(dot)com> a écrit :
> Hi, using postgres 12.5.
>
>
>
> The to_char function has a problem with format length.
>
>
>
> Example, select length (to_char (1, '990'))
>
>
>
> returns 4 because?
>
>
>
> if the format has length 3?
>
>
>
Actually, the format length isn't 3. It is 4 because you need one character
to put the sign when needed.
postgres=# select '<'||to_char (+999, '990')||'>';
?column?
----------
< 999>
(1 row)
postgres=# select '<'||to_char (-999, '990')||'>';
?column?
----------
<-999>
(1 row)
--
Guillaume.
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