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Doc: Update ulinks to RFC documents to avoid redirect
The tools.ietf.org site has been decommissioned and replaced by a number of sites serving various purposes. Links to RFCs and BCPs are now 301 redirected to their new respective IETF sites. Since this serves no purpose and only adds network overhead, update our links to the new locations. Backpatch to all supported versions. Discussion: https://postgr.es/m/3C1CEA99-FCED-447D-9858-5A579B4C6687@yesql.se Backpatch-through: v12
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@ -634,7 +634,7 @@
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<ulink
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url="https://en.wikipedia.org/wiki/Server_Name_Indication">
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Server Name Indication</ulink>,
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<ulink url="https://tools.ietf.org/html/rfc6066#section-3">RFC 6066</ulink>
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<ulink url="https://datatracker.ietf.org/doc/html/rfc6066#section-3">RFC 6066</ulink>
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</para>
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</listitem>
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</varlistentry>
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@ -1625,7 +1625,7 @@ SCRAM-SHA-256$<replaceable><iteration count></replaceable>:<replaceable>&l
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</synopsis>
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where <replaceable>salt</replaceable>, <replaceable>StoredKey</replaceable> and
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<replaceable>ServerKey</replaceable> are in Base64 encoded format. This format is
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the same as that specified by <ulink url="https://tools.ietf.org/html/rfc5803">RFC 5803</ulink>.
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the same as that specified by <ulink url="https://datatracker.ietf.org/doc/html/rfc5803">RFC 5803</ulink>.
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</para>
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<para>
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@ -1702,7 +1702,7 @@ ORDER BY c COLLATE ebcdic;
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</listitem>
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<listitem>
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<para>
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<ulink url="https://tools.ietf.org/html/bcp47">BCP 47</ulink>
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<ulink url="https://www.rfc-editor.org/info/bcp47">BCP 47</ulink>
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</para>
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</listitem>
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<listitem>
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@ -3399,7 +3399,7 @@ RESET client_encoding;
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</varlistentry>
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<varlistentry>
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<term><ulink url="https://tools.ietf.org/html/rfc3629">RFC 3629</ulink></term>
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<term><ulink url="https://datatracker.ietf.org/doc/html/rfc3629">RFC 3629</ulink></term>
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<listitem>
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<para>
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@ -691,7 +691,7 @@ include_dir <replaceable>directory</replaceable>
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entire <literal>Distinguished Name (DN)</literal> of the certificate.
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This option is probably best used in conjunction with a username map.
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The comparison is done with the <literal>DN</literal> in
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<ulink url="https://tools.ietf.org/html/rfc2253">RFC 2253</ulink>
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<ulink url="https://datatracker.ietf.org/doc/html/rfc2253">RFC 2253</ulink>
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format. To see the <literal>DN</literal> of a client certificate
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in this format, do
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<programlisting>
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@ -1090,7 +1090,7 @@ omicron bryanh guest1
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<para>
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<link linkend="auth-ident">Ident authentication</link>, which
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relies on an <quote>Identification Protocol</quote>
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(<ulink url="https://tools.ietf.org/html/rfc1413">RFC 1413</ulink>)
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(<ulink url="https://datatracker.ietf.org/doc/html/rfc1413">RFC 1413</ulink>)
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service on the client's machine. (On local Unix-socket connections,
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this is treated as peer authentication.)
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</para>
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@ -1229,7 +1229,7 @@ omicron bryanh guest1
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<para>
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The method <literal>scram-sha-256</literal> performs SCRAM-SHA-256
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authentication, as described in
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<ulink url="https://tools.ietf.org/html/rfc7677">RFC 7677</ulink>. It
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<ulink url="https://datatracker.ietf.org/doc/html/rfc7677">RFC 7677</ulink>. It
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is a challenge-response scheme that prevents password sniffing on
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untrusted connections and supports storing passwords on the server in a
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cryptographically hashed form that is thought to be secure.
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@ -1336,7 +1336,7 @@ omicron bryanh guest1
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<para>
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<productname>GSSAPI</productname> is an industry-standard protocol
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for secure authentication defined in
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<ulink url="https://tools.ietf.org/html/rfc2743">RFC 2743</ulink>.
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<ulink url="https://datatracker.ietf.org/doc/html/rfc2743">RFC 2743</ulink>.
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<productname>PostgreSQL</productname>
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supports <productname>GSSAPI</productname> for authentication,
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communications encryption, or both.
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@ -1651,7 +1651,7 @@ omicron bryanh guest1
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<para>
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The <quote>Identification Protocol</quote> is described in
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<ulink url="https://tools.ietf.org/html/rfc1413">RFC 1413</ulink>.
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<ulink url="https://datatracker.ietf.org/doc/html/rfc1413">RFC 1413</ulink>.
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Virtually every Unix-like
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operating system ships with an ident server that listens on TCP
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port 113 by default. The basic functionality of an ident server
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@ -1820,7 +1820,7 @@ omicron bryanh guest1
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<para>
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Set to 1 to make the connection between PostgreSQL and the LDAP server
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use TLS encryption. This uses the <literal>StartTLS</literal>
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operation per <ulink url="https://tools.ietf.org/html/rfc4513">RFC 4513</ulink>.
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operation per <ulink url="https://datatracker.ietf.org/doc/html/rfc4513">RFC 4513</ulink>.
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See also the <literal>ldapscheme</literal> option for an alternative.
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</para>
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</listitem>
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@ -1915,7 +1915,7 @@ omicron bryanh guest1
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<term><literal>ldapurl</literal></term>
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<listitem>
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<para>
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An <ulink url="https://tools.ietf.org/html/rfc4516">RFC 4516</ulink>
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An <ulink url="https://datatracker.ietf.org/doc/html/rfc4516">RFC 4516</ulink>
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LDAP URL. This is an alternative way to write some of the
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other LDAP options in a more compact and standard form. The format is
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<synopsis>
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@ -1978,7 +1978,7 @@ ldap[s]://<replaceable>host</replaceable>[:<replaceable>port</replaceable>]/<rep
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<productname>OpenLDAP</productname> as the LDAP client library, the
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<literal>ldapserver</literal> setting may be omitted. In that case, a
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list of host names and ports is looked up via
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<ulink url="https://tools.ietf.org/html/rfc2782">RFC 2782</ulink> DNS SRV records.
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<ulink url="https://datatracker.ietf.org/doc/html/rfc2782">RFC 2782</ulink> DNS SRV records.
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The name <literal>_ldap._tcp.DOMAIN</literal> is looked up, where
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<literal>DOMAIN</literal> is extracted from <literal>ldapbasedn</literal>.
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</para>
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@ -2471,7 +2471,7 @@ TIMESTAMP WITH TIME ZONE '2004-10-19 10:23:54+02'
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the date and time. <productname>PostgreSQL</productname> accepts that format on
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input, but on output it uses a space rather than <literal>T</literal>, as shown
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above. This is for readability and for consistency with
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<ulink url="https://tools.ietf.org/html/rfc3339">RFC 3339</ulink> as
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<ulink url="https://datatracker.ietf.org/doc/html/rfc3339">RFC 3339</ulink> as
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well as some other database systems.
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</para>
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</note>
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@ -4367,7 +4367,7 @@ SELECT to_tsvector( 'postgraduate' ), to_tsquery( 'postgres:*' );
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<para>
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The data type <type>uuid</type> stores Universally Unique Identifiers
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(UUID) as defined by <ulink url="https://tools.ietf.org/html/rfc4122">RFC 4122</ulink>,
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(UUID) as defined by <ulink url="https://datatracker.ietf.org/doc/html/rfc4122">RFC 4122</ulink>,
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ISO/IEC 9834-8:2005, and related standards.
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(Some systems refer to this data type as a globally unique identifier, or
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GUID,<indexterm><primary>GUID</primary></indexterm> instead.) This
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<literal>%z</literal> - is replaced by the time zone offset from
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UTC; a leading plus sign stands for east of UTC, a minus sign for
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west of UTC, hours and minutes follow with two digits each and no
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delimiter between them (common form for <ulink url="https://tools.ietf.org/html/rfc822">RFC 822</ulink> date headers).
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delimiter between them (common form for <ulink url="https://datatracker.ietf.org/doc/html/rfc822">RFC 822</ulink> date headers).
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</para>
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</listitem>
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<listitem>
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@ -4901,7 +4901,7 @@ SELECT format('Testing %3$s, %2$s, %s', 'one', 'two', 'three');
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<listitem>
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<para>
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The <literal>base64</literal> format is that
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of <ulink url="https://tools.ietf.org/html/rfc2045#section-6.8">RFC
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of <ulink url="https://datatracker.ietf.org/doc/html/rfc2045#section-6.8">RFC
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2045 Section 6.8</ulink>. As per the <acronym>RFC</acronym>, encoded lines are
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broken at 76 characters. However instead of the MIME CRLF
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end-of-line marker, only a newline is used for end-of-line.
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@ -14198,7 +14198,7 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
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<function>uuid_extract_version</function> (uuid) <returnvalue>smallint</returnvalue>
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</synopsis>
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This function extracts the version from a UUID of the variant described by
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<ulink url="https://tools.ietf.org/html/rfc4122">RFC 4122</ulink>. For
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<ulink url="https://datatracker.ietf.org/doc/html/rfc4122">RFC 4122</ulink>. For
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other variants, this function returns null. For example, for a UUID
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generated by <function>gen_random_uuid</function>, this function will
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return 4.
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@ -15537,7 +15537,7 @@ table2-mapping
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values, with an additional SQL/JSON null value, and composite data structures
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that use JSON arrays and objects. The model is a formalization of the implied
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data model in the JSON specification
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<ulink url="https://tools.ietf.org/html/rfc7159">RFC 7159</ulink>.
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<ulink url="https://datatracker.ietf.org/doc/html/rfc7159">RFC 7159</ulink>.
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</para>
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<para>
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@ -13,7 +13,7 @@
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<para>
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JSON data types are for storing JSON (JavaScript Object Notation)
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data, as specified in <ulink url="https://tools.ietf.org/html/rfc7159">RFC
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data, as specified in <ulink url="https://datatracker.ietf.org/doc/html/rfc7159">RFC
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7159</ulink>. Such data can also be stored as <type>text</type>, but
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the JSON data types have the advantage of enforcing that each
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stored value is valid according to the JSON rules. There are also
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connection parameters. There are two accepted formats for these strings:
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plain keyword/value strings
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and URIs. URIs generally follow
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<ulink url="https://tools.ietf.org/html/rfc3986">RFC
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<ulink url="https://datatracker.ietf.org/doc/html/rfc3986">RFC
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3986</ulink>, except that multi-host connection strings are allowed
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as further described below.
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</para>
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@ -1005,7 +1005,7 @@ postgresql:///mydb?host=localhost&port=5433
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<para>
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The connection <acronym>URI</acronym> needs to be encoded with <ulink
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url="https://tools.ietf.org/html/rfc3986#section-2.1">percent-encoding</ulink>
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url="https://datatracker.ietf.org/doc/html/rfc3986#section-2.1">percent-encoding</ulink>
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if it includes symbols with special meaning in any of its parts. Here is
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an example where the equal sign (<literal>=</literal>) is replaced with
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<literal>%3D</literal> and the space character with
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@ -9343,7 +9343,7 @@ user=admin
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LDAP query will be performed. The result must be a list of
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<literal>keyword = value</literal> pairs which will be used to set
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connection options. The URL must conform to
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<ulink url="https://tools.ietf.org/html/rfc1959">RFC 1959</ulink>
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<ulink url="https://datatracker.ietf.org/doc/html/rfc1959">RFC 1959</ulink>
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and be of the form
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<synopsis>
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ldap://[<replaceable>hostname</replaceable>[:<replaceable>port</replaceable>]]/<replaceable>search_base</replaceable>?<replaceable>attribute</replaceable>?<replaceable>search_scope</replaceable>?<replaceable>filter</replaceable>
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@ -9487,7 +9487,7 @@ ldap://ldap.acme.com/cn=dbserver,cn=hosts?pgconnectinfo?base?(objectclass=*)
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<para>
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For backward compatibility with earlier versions of PostgreSQL, the host
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IP address is verified in a manner different
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from <ulink url="https://tools.ietf.org/html/rfc6125">RFC 6125</ulink>.
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from <ulink url="https://datatracker.ietf.org/doc/html/rfc6125">RFC 6125</ulink>.
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The host IP address is always matched against <literal>dNSName</literal>
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SANs as well as <literal>iPAddress</literal> SANs, and can be matched
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against the Common Name attribute if no relevant SANs exist.
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<para>
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The functions here implement the encryption part of the OpenPGP
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(<ulink url="https://tools.ietf.org/html/rfc4880">RFC 4880</ulink>)
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(<ulink url="https://datatracker.ietf.org/doc/html/rfc4880">RFC 4880</ulink>)
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standard. Supported are both symmetric-key and public-key encryption.
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</para>
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@ -1600,7 +1600,7 @@ SELCT 1/0;<!-- this typo is intentional -->
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respectively. The frontend might close the connection at this point
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if it is dissatisfied with the response. To continue after
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<literal>G</literal>, using the GSSAPI C bindings as discussed in
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<ulink url="https://tools.ietf.org/html/rfc2744">RFC 2744</ulink>
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<ulink url="https://datatracker.ietf.org/doc/html/rfc2744">RFC 2744</ulink>
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or equivalent, perform a <acronym>GSSAPI</acronym> initialization by
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calling <function>gss_init_sec_context()</function> in a loop and sending
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the result to the server, starting with an empty input and then with each
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@ -1737,8 +1737,8 @@ SELCT 1/0;<!-- this typo is intentional -->
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The implemented SASL mechanisms at the moment
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are <literal>SCRAM-SHA-256</literal> and its variant with channel
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binding <literal>SCRAM-SHA-256-PLUS</literal>. They are described in
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detail in <ulink url="https://tools.ietf.org/html/rfc7677">RFC 7677</ulink>
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and <ulink url="https://tools.ietf.org/html/rfc5802">RFC 5802</ulink>.
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detail in <ulink url="https://datatracker.ietf.org/doc/html/rfc7677">RFC 7677</ulink>
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and <ulink url="https://datatracker.ietf.org/doc/html/rfc5802">RFC 5802</ulink>.
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</para>
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<para>
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@ -2983,7 +2983,7 @@ lo_import 152801
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</indexterm>
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writes column values separated by commas, applying the quoting
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rules described in
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<ulink url="https://tools.ietf.org/html/rfc4180">RFC 4180</ulink>.
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<ulink url="https://datatracker.ietf.org/doc/html/rfc4180">RFC 4180</ulink>.
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This output is compatible with the CSV format of the server's
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<command>COPY</command> command.
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A header line with column names is generated unless
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<para>
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<literal>email</literal> does not support all valid email characters as
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defined by <ulink url="https://tools.ietf.org/html/rfc5322">RFC 5322</ulink>.
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defined by <ulink url="https://datatracker.ietf.org/doc/html/rfc5322">RFC 5322</ulink>.
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Specifically, the only non-alphanumeric characters supported for
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email user names are period, dash, and underscore.
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</para>
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@ -29,7 +29,7 @@
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<xref linkend="uuid-ossp-functions"/> shows the functions available to
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generate UUIDs.
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The relevant standards ITU-T Rec. X.667, ISO/IEC 9834-8:2005, and
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<ulink url="https://tools.ietf.org/html/rfc4122">RFC 4122</ulink>
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<ulink url="https://datatracker.ietf.org/doc/html/rfc4122">RFC 4122</ulink>
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specify four algorithms for generating UUIDs, identified by the
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version numbers 1, 3, 4, and 5. (There is no version 2 algorithm.)
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Each of these algorithms could be suitable for a different set of
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