| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Fontana Daniel C(dot) \(Desartec S(dot)R(dot)L(dot)\)" <desartecsrl(at)gmail(dot)com> |
| Cc: | pgsql-bugs(at)lists(dot)postgresql(dot)org |
| Subject: | Re: function to_char |
| Date: | 2021-04-17 15:09:53 |
| Message-ID: | 256548.1618672193@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
"Fontana Daniel C. \(Desartec S.R.L.\)" <desartecsrl(at)gmail(dot)com> writes:
> Example, select length (to_char (1, '990'))
> returns 4 because?
Per the fine manual:
* If no explicit provision is made for a sign in to_char()'s pattern,
one column will be reserved for the sign, and it will be anchored to
(appear just left of) the number. If S appears just left of some
9's, it will likewise be anchored to the number.
If you don't want to leave space for a sign, it looks like FM is
the only way to do that.
regards, tom lane
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