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Since some preparation work had already been done, the only source changes left were changing empty-element tags like <xref linkend="foo"> to <xref linkend="foo"/>, and changing the DOCTYPE. The source files are still named *.sgml, but they are actually XML files now. Renaming could be considered later. In the build system, the intermediate step to convert from SGML to XML is removed. Everything is build straight from the source files again. The OpenSP (or the old SP) package is no longer needed. The documentation toolchain instructions are updated and are much simpler now. Peter Eisentraut, Alexander Lakhin, Jürgen Purtz
115 lines
2.8 KiB
Plaintext
115 lines
2.8 KiB
Plaintext
<!--
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doc/src/sgml/ref/drop_foreign_data_wrapper.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-dropforeigndatawrapper">
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<indexterm zone="sql-dropforeigndatawrapper">
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<primary>DROP FOREIGN DATA WRAPPER</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>DROP FOREIGN DATA WRAPPER</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>DROP FOREIGN DATA WRAPPER</refname>
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<refpurpose>remove a foreign-data wrapper</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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DROP FOREIGN DATA WRAPPER [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [, ...] [ CASCADE | RESTRICT ]
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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>DROP FOREIGN DATA WRAPPER</command> removes an existing
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foreign-data wrapper. To execute this command, the current user
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must be the owner of the foreign-data wrapper.
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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><literal>IF EXISTS</literal></term>
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<listitem>
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<para>
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Do not throw an error if the foreign-data wrapper does not
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exist. A notice is issued in this case.
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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">name</replaceable></term>
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<listitem>
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<para>
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The name of an existing foreign-data wrapper.
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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>CASCADE</literal></term>
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<listitem>
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<para>
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Automatically drop objects that depend on the foreign-data
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wrapper (such as foreign tables and servers),
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and in turn all objects that depend on those objects
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(see <xref linkend="ddl-depend"/>).
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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>RESTRICT</literal></term>
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<listitem>
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<para>
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Refuse to drop the foreign-data wrapper if any objects depend
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on it. This is the default.
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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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Drop the foreign-data wrapper <literal>dbi</literal>:
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<programlisting>
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DROP FOREIGN DATA WRAPPER dbi;
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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>DROP FOREIGN DATA WRAPPER</command> conforms to ISO/IEC
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9075-9 (SQL/MED). The <literal>IF EXISTS</literal> clause is
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a <productname>PostgreSQL</productname> extension.
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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-createforeigndatawrapper"/></member>
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<member><xref linkend="sql-alterforeigndatawrapper"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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