BUG #18034: Accept the spelling "+infinity" in datetime input is not accurate

The following bug has been logged on the website:

Bug reference:      18034
Logged by:          yanliang lei
Email address:      msdnchina@163.com
PostgreSQL version: 16beta2
Operating system:   RHEL7.9
Description:

in the https://www.postgresql.org/docs/16/release-16.html, there is a new
feature ：Accept the spelling "+infinity" in datetime input。
Actually，"in datetime input " is not accurate.
Actually, in the PostgreSQL 16 beta2 edition, the spelling "+infinity" can
be used in the following three datatypes:
1.timestamp [ (p) ] [ without time zone ]
2.timestamp [ (p) ] with time zone
3.date

and the spelling "+infinity" can not be used in the   following two
datatypes:
1.time [ (p) ] [ without time zone ]
2.time [ (p) ] with time zone

so ，I think that the follow descirtion is accurate：
Accept the spelling "+infinity" in the following data types:
      timestamp [ (p) ] [ without time zone ] 、
      timestamp [ (p) ] with time zone、
      date datatypes。