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In the particular case of GRANTED BY, this is specified in the SQL standard. Since in PostgreSQL, CURRENT_ROLE is equivalent to CURRENT_USER, and CURRENT_USER is already supported here, adding CURRENT_ROLE is trivial. The other cases are PostgreSQL extensions, but for the same reason it also makes sense there. Reviewed-by: Vik Fearing <vik@postgresfriends.org> Reviewed-by: Asif Rehman <asifr.rehman@gmail.com> Reviewed-by: Alvaro Herrera <alvherre@2ndquadrant.com> Discussion: https://www.postgresql.org/message-id/flat/f2feac44-b4c5-f38f-3699-2851d6a76dc9%402ndquadrant.com
145 lines
4.2 KiB
Plaintext
145 lines
4.2 KiB
Plaintext
<!--
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doc/src/sgml/ref/alter_server.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-alterserver">
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<indexterm zone="sql-alterserver">
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<primary>ALTER SERVER</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>ALTER SERVER</refentrytitle>
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<manvolnum>7</manvolnum>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>ALTER SERVER</refname>
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<refpurpose>change the definition of a foreign server</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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ALTER SERVER <replaceable class="parameter">name</replaceable> [ VERSION '<replaceable class="parameter">new_version</replaceable>' ]
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[ OPTIONS ( [ ADD | SET | DROP ] <replaceable class="parameter">option</replaceable> ['<replaceable class="parameter">value</replaceable>'] [, ... ] ) ]
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ALTER SERVER <replaceable class="parameter">name</replaceable> OWNER TO { <replaceable>new_owner</replaceable> | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
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ALTER SERVER <replaceable class="parameter">name</replaceable> RENAME TO <replaceable>new_name</replaceable>
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</synopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>ALTER SERVER</command> changes the definition of a foreign
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server. The first form changes the server version string or the
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generic options of the server (at least one clause is required).
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The second form changes the owner of the server.
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</para>
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<para>
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To alter the server you must be the owner of the server.
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Additionally to alter the owner, you must own the server and also
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be a direct or indirect member of the new owning role, and you must
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have <literal>USAGE</literal> privilege on the server's foreign-data
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wrapper. (Note that superusers satisfy all these criteria
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automatically.)
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</para>
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</refsect1>
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<refsect1>
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<title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><replaceable class="parameter">name</replaceable></term>
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<listitem>
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<para>
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The name of an existing server.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">new_version</replaceable></term>
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<listitem>
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<para>
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New server version.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>OPTIONS ( [ ADD | SET | DROP ] <replaceable class="parameter">option</replaceable> ['<replaceable class="parameter">value</replaceable>'] [, ... ] )</literal></term>
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<listitem>
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<para>
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Change options for the
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server. <literal>ADD</literal>, <literal>SET</literal>, and <literal>DROP</literal>
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specify the action to be performed. <literal>ADD</literal> is assumed
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if no operation is explicitly specified. Option names must be
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unique; names and values are also validated using the server's
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foreign-data wrapper library.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">new_owner</replaceable></term>
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<listitem>
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<para>
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The user name of the new owner of the foreign server.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">new_name</replaceable></term>
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<listitem>
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<para>
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The new name for the foreign server.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>
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Alter server <literal>foo</literal>, add connection options:
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<programlisting>
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ALTER SERVER foo OPTIONS (host 'foo', dbname 'foodb');
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</programlisting>
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</para>
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<para>
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Alter server <literal>foo</literal>, change version,
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change <literal>host</literal> option:
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<programlisting>
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ALTER SERVER foo VERSION '8.4' OPTIONS (SET host 'baz');
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</programlisting></para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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<command>ALTER SERVER</command> conforms to ISO/IEC 9075-9 (SQL/MED).
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The <literal>OWNER TO</literal> and <literal>RENAME</literal> forms are
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PostgreSQL extensions.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-createserver"/></member>
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<member><xref linkend="sql-dropserver"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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