116 lines
2.7 KiB
Plaintext
116 lines
2.7 KiB
Plaintext
<!--
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doc/src/sgml/ref/drop_foreign_table.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-dropforeigntable">
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<indexterm zone="sql-dropforeigntable">
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<primary>DROP FOREIGN TABLE</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>DROP FOREIGN TABLE</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 TABLE</refname>
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<refpurpose>remove a foreign table</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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DROP FOREIGN TABLE [ 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 TABLE</command> removes a foreign table.
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Only the owner of a foreign table can remove it.
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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 table does not exist.
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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 (optionally schema-qualified) of the foreign table to drop.
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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 table (such as
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views), 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 table if any objects depend on it. This is
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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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To destroy two foreign tables, <literal>films</literal> and
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<literal>distributors</literal>:
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<programlisting>
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DROP FOREIGN TABLE films, distributors;
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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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This command conforms to ISO/IEC 9075-9 (SQL/MED), except that the
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standard only allows one foreign table to be dropped per command, and apart
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from the <literal>IF EXISTS</literal> option, which is a <productname>PostgreSQL</productname>
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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-alterforeigntable"/></member>
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<member><xref linkend="sql-createforeigntable"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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