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SQL/MED catalog manipulation facilities

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This doesn't do any remote or external things yet, but it gives modules
like plproxy and dblink a standardized and future-proof system for
managing their connection information.

Martin Pihlak and Peter Eisentraut
This commit is contained in:
Peter Eisentraut
2008-12-19 16:25:19 +00:00
parent 1eec10a2de
commit cae565e503
76 changed files with 8452 additions and 125 deletions
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doc/src/sgml/ref/drop_user_mapping.sgml Normal file
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<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/drop_user_mapping.sgml,v 1.1 2008/12/19 16:25:16 petere Exp $
PostgreSQL documentation
-->
<refentry id="SQL-DROPUSERMAPPING">
<refmeta>
<refentrytitle id="sql-dropusermapping-title">DROP USER MAPPING</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DROP USER MAPPING</refname>
<refpurpose>remove a user mapping for a foreign server</refpurpose>
</refnamediv>
<indexterm zone="sql-dropusermapping">
<primary>DROP USER MAPPING</primary>
</indexterm>
<refsynopsisdiv>
<synopsis>
DROP USER MAPPING [ IF EXISTS ] FOR { <replaceable class="parameter">username</replaceable> | USER | CURRENT_USER | PUBLIC } SERVER <replaceable class="parameter">servername</replaceable>
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>DROP USER MAPPING</command> removes an existing user
mapping from foreign server. To execute this command, the current
user must be the owner of the server containing the mapping.
</para>
</refsect1>
<refsect1>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term><literal>IF EXISTS</literal></term>
<listitem>
<para>
Do not throw an error if the user mapping does not exist. A
notice is issued in this case.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">username</replaceable></term>
<listitem>
<para>
User name of the mapping. <literal>CURRENT_USER</>
and <literal>USER</> match the name of the current
user. <literal>PUBLIC</> is used to match all present and
future user names in the system.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><replaceable class="parameter">servername</replaceable></term>
<listitem>
<para>
Server name of the user mapping.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Drop a user mapping <literal>bob</>, server <literal>foo</> if it exists:
<programlisting>
DROP USER MAPPING IF EXISTS FOR bob SERVER foo;
</programlisting>
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
<command>DROP USER MAPPING</command> conforms to ISO/IEC 9075-9
(SQL/MED). The <literal>IF EXISTS</> clause is
a <productname>PostgreSQL</> extension.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-createusermapping" endterm="sql-createusermapping-title"></member>
<member><xref linkend="sql-alterusermapping" endterm="sql-alterusermapping-title"></member>
</simplelist>
</refsect1>
</refentry>