Received: from malur.postgresql.org ([217.196.149.56])
	by arkaria.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <pgsql-docs-owner+archive@lists.postgresql.org>)
	id 1qc5tT-00DoJv-34
	for pgsql-docs@arkaria.postgresql.org; Fri, 01 Sep 2023 15:17:07 +0000
Received: from localhost ([127.0.0.1] helo=malur.postgresql.org)
	by malur.postgresql.org with esmtp (Exim 4.94.2)
	(envelope-from <pgsql-docs-owner+archive@lists.postgresql.org>)
	id 1qc5tQ-00FTxX-Ok
	for pgsql-docs@arkaria.postgresql.org; Fri, 01 Sep 2023 15:17:04 +0000
Received: from makus.postgresql.org ([2001:4800:3e1:1::229])
	by malur.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <ewie@ewie.name>)
	id 1qc5tQ-00FTxB-5l
	for pgsql-docs@lists.postgresql.org; Fri, 01 Sep 2023 15:17:04 +0000
Received: from mout-u-107.mailbox.org ([80.241.59.207])
	by makus.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <ewie@ewie.name>)
	id 1qc5tK-002AuY-Mg
	for pgsql-docs@lists.postgresql.org; Fri, 01 Sep 2023 15:17:02 +0000
Received: from smtp202.mailbox.org (smtp202.mailbox.org [10.196.197.202])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
	 key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits)
 server-digest SHA256)
	(No client certificate requested)
	by mout-u-107.mailbox.org (Postfix) with ESMTPS id 4RchTK1YMSz9sTj;
	Fri,  1 Sep 2023 17:16:53 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ewie.name; s=MBO0001;
	t=1693581413;
	h=from:from:reply-to:subject:subject:date:date:message-id:message-id:
	 to:to:cc:mime-version:mime-version:content-type:content-type:
	 content-transfer-encoding:content-transfer-encoding:
	 in-reply-to:in-reply-to:references:references;
	bh=EWU8XOA6wdhUnBLCXkIkZ9Q3cXKQcmM+TaZ1Y7yy6Ag=;
	b=gMxtgi+zrbv/jl5X96W9DZ4OuKgv5uLE6qi82wycm0VEcWHAV6qpxla2hNVFPaLavVuAM7
	Q77NR7vHnJT6Z0gLvNOC8Rujq0eloydgMabq0Bm8m+roJraQsXovYFwDerYhCKOHYgWfHD
	JrT3FfzQyuvJsMeHiYaE/beWve5fYPy+JQJQOfGC+GciTo+X9WGZlW0PeAlD5hVJlIVexJ
	1BgfyEqIcJEDF+VGl1BDZgmjKfWXbUncjPm0L0k8Gn6RPe7KkNjOElIPqnJlUuodbH8dEi
	zNkaMl9zqXGSliBihYJSUv6JD33IoQVTeO68DfqdkUvJfnvSP0gdLO6pOjXj1w==
Date: Fri, 1 Sep 2023 17:16:52 +0200 (CEST)
From: Erik Wienhold <ewie@ewie.name>
To: evasquezg97@gmail.com, pgsql-docs@lists.postgresql.org
Message-ID: <2000743697.23098.1693581412642@office.mailbox.org>
In-Reply-To: <169343819690.621.1560145208256468582@wrigleys.postgresql.org>
References: <169343819690.621.1560145208256468582@wrigleys.postgresql.org>
Subject: Re: Error in Example
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
X-Priority: 3
Importance: Normal
List-Id: <pgsql-docs.lists.postgresql.org>
List-Help: <https://lists.postgresql.org/manage/>
List-Subscribe: <https://lists.postgresql.org/manage/>
List-Post: <mailto:pgsql-docs@lists.postgresql.org>
List-Owner: <mailto:pgsql-docs-owner@lists.postgresql.org>
List-Archive: <https://www.postgresql.org/list/pgsql-docs>
Archived-At: 
 <https://www.postgresql.org/message-id/2000743697.23098.1693581412642%40office.mailbox.org>
Precedence: bulk

On 31/08/2023 01:29 CEST PG Doc comments form <noreply@postgresql.org> wrote:

> Page: https://www.postgresql.org/docs/15/indexes-partial.html
> Description:
>
> The IP addresses used to exemplify which one will be covered by the partial
> index are inverted.

No, the example is correct.  It's about only indexing addresses outside some
hypothetical organization's subnet 192.168.100.0/24.  Notice that the index
predicate is negated.

Of course the predicate could be written without inverting the range:

	WHERE (client_ip <= inet '192.168.100.0' OR
               client_ip >= inet '192.168.100.255')

--
Erik