Re: BUG #17546: power() function - value is distorted via automatic type cast

=?utf-8?B?0JDQvdGC0L7QvSDQn9C+0YLQsNC/0L7Qsg==?= <su.sinodan@gmail.com> writes:
> Is there any chance that you will reflect this in the documentation?

It is documented --- see under
    https://www.postgresql.org/docs/current/datatype-numeric.html
and
    https://www.postgresql.org/docs/current/typeconv.html
(particularly example 10.3, which points out that float8 is
considered a preferred type).  We are not going to repeat all that
material under every single affected function, if that's what
you're asking for.

            regards, tom lane