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From: Tom Lane <tgl@sss.pgh.pa.us>
To: "David G. Johnston" <david.g.johnston@gmail.com>
cc: Adrian Klaver <adrian.klaver@aklaver.com>,
 "Richard RK. Klingler" <richard@klingler.net>,
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Subject: Re: IP address, subnet query behaves wrong for /32
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References: <1FC8E571-8456-4085-B59B-016ECD365768@klingler.net>
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Comments: In-reply-to "David G. Johnston" <david.g.johnston@gmail.com>
 message dated "Thu, 06 Aug 2015 10:07:41 -0700"
Date: Thu, 06 Aug 2015 15:10:31 -0400
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"David G. Johnston" <david.g.johnston@gmail.com> writes:
> On Thu, Aug 6, 2015 at 10:02 AM, Adrian Klaver <adrian.klaver@aklaver.com>
> wrote:
>> " If the netmask is 32 and the address is IPv4, then the value does not
>> indicate a subnet, only a single host."
>> 
>> So it is behaving as documented.

> This seems overly simplified given that "<<=" will indeed match two host
> specifications.

No, only one.  There is no difference between '192.168.0.1'::inet and
'192.168.0.1/32'::inet; they're the same value.  The first notation
is merely a shorthand for the second.

			regards, tom lane


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