Re: type of some table storage params on doc

Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
> On 2020-Mar-18, Michael Paquier wrote:
>> On Mon, Mar 16, 2020 at 11:07:37AM +0900, Atsushi Torikoshi wrote:
>>>> In this case, the parsing uses parse_real(), which is exactly the same
>>>> code path as what real GUCs use.

> Hmm. So unadorned 'floating point' seems to refer to float8; you have
> to use float(24) in order to get a float4. The other standards-mandated
> name for float4 seems to be REAL. (I had a look around but was unable
> to figure out whether the standard mandates exact bit widths other than
> the precision spec). Since they're not doubles, what about we use REAL
> rather than FLOATING POINT?

Isn't this whole argument based on a false premise? What parse_real
returns is double, not float. Also notice that config.sgml consistently
documents those GUCs as <type>floating point</type>. (I recall having
recently whacked some GUC descriptions that were randomly out of line
with that.)

regards, tom lane