Re: BUG #13504: Types in math functions table is incorrect

On Thursday, July 16, 2015, <tgpfeiffer(at)web(dot)de> wrote:

> The following bug has been logged on the website:
>
> Bug reference: 13504
> Logged by: Tobias Pfeiffer
> Email address: tgpfeiffer(at)web(dot)de <javascript:;>
> PostgreSQL version: 9.4.4
> Operating system: --
> Description:
>
> On http://www.postgresql.org/docs/9.4/static/functions-math.html in Table
> 9-3 there is a number of issues in the "Return Type" column.
>
> For example:
> - for ln it says "same as input", but the output is actually double
> precision (both when checked with two eyes and `pg_typeof`)
> - same for log
> - for sign it says "same as input" but the output is actually numeric
>
> I have not checked all of the functions in that table, but at least the
> ones
> above need to be fixed, I think.
>
>
It would be helpful if you supplied the queries you used to make these
determinations.

David J.