| From: | Michael Paquier <michael(at)paquier(dot)xyz> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: pgsql: Add support for hyperbolic functions, as well as log10(). |
| Date: | 2019-03-13 02:21:59 |
| Message-ID: | 20190313022159.GR13812@paquier.xyz |
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| Thread: | |
| Lists: | pgsql-committers pgsql-hackers |
On Tue, Mar 12, 2019 at 07:55:14PM +0000, Tom Lane wrote:
> Add support for hyperbolic functions, as well as log10().
>
> The SQL:2016 standard adds support for the hyperbolic functions
> sinh(), cosh(), and tanh(). POSIX has long required libm to
> provide those functions as well as their inverses asinh(),
> acosh(), atanh(). Hence, let's just expose the libm functions
> to the SQL level. As with the trig functions, we only implement
> versions for float8, not numeric.
jacana is not a fan of this commit, and failed on float8:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=jacana&dt=2019-03-13%2000%3A00%3A27
@@ -476,7 +476,7 @@
SELECT asinh(float8 '0');
asinh
-------
- 0
+ -0
(1 row)
--
Michael
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