Re: funcs.sgml - wrong example

At Wed, 18 May 2022 03:08:32 +0200, Erik Rijkers <er@xs4all.nl> wrote in 
> funcs.sgml  has
> 
>   42 <@ '{[1,7)}'::int4multirange
> 
> and calls it true.  The attached fixes that.
> 
> Included are two more changes where actual output differs a bit from
> what the doc examples show.

A bit off-topic and just out of curiocity, is there a reason other
than speed (and history?) for that we won't truncate trailing zeros in
the output of log(b,n)?

Since we have get_min_scale since 13, for example, with the following
tweak, we get 6.0 for log(2.0, 64.0), which looks nicer.


@@ -10300,6 +10300,8 @@ log_var(const NumericVar *base, const NumericVar *num, NumericVar *result)
     /* Divide and round to the required scale */
     div_var_fast(&ln_num, &ln_base, result, rscale, true);
 
+    result->dscale = Max(get_min_scale(result), base->dscale);
+    result->dscale = Max(result->dscale, num->dscale);
     free_var(&ln_num);

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center