The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/9.1/static/datatype-net-types.html
Description:
8.9.2 cidr:
In table 8-22 I've missed one row:
IP Address 192.168.20.1 (without netmask)
will give output 192.168.20.1/32 (tested)
Why I was not sure: 192.168.20.1 can be interpreted as adress in the
standard network (24bit) or as single address(32bit)