doc/src/sgml/ref/drop_foreign_data_wrapper.sgml

   1 <!--
   2 $PostgreSQL$
   3 PostgreSQL documentation
   4 -->
   5
   6 <refentry id="SQL-DROPFOREIGNDATAWRAPPER">
   7  <refmeta>
   8   <refentrytitle id="sql-dropforeigndatawrapper-title">DROP FOREIGN DATA WRAPPER</refentrytitle>
   9   <manvolnum>7</manvolnum>
  10   <refmiscinfo>SQL - Language Statements</refmiscinfo>
  11  </refmeta>
  12
  13  <refnamediv>
  14   <refname>DROP FOREIGN DATA WRAPPER</refname>
  15   <refpurpose>remove a foreign-data wrapper</refpurpose>
  16  </refnamediv>
  17
  18  <indexterm zone="sql-dropforeigndatawrapper">
  19   <primary>DROP FOREIGN DATA WRAPPER</primary>
  20  </indexterm>
  21
  22  <refsynopsisdiv>
  23 <synopsis>
  24 DROP FOREIGN DATA WRAPPER [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [ CASCADE | RESTRICT ]
  25 </synopsis>
  26  </refsynopsisdiv>
  27
  28  <refsect1>
  29   <title>Description</title>
  30
  31   <para>
  32    <command>DROP FOREIGN DATA WRAPPER</command> removes an existing
  33    foreign-data wrapper.  To execute this command, the current user
  34    must be the owner of the foreign-data wrapper.
  35   </para>
  36  </refsect1>
  37
  38  <refsect1>
  39   <title>Parameters</title>
  40
  41   <variablelist>
  42    <varlistentry>
  43     <term><literal>IF EXISTS</literal></term>
  44     <listitem>
  45      <para>
  46       Do not throw an error if the foreign-data wrapper does not
  47       exist.  A notice is issued in this case.
  48      </para>
  49     </listitem>
  50    </varlistentry>
  51
  52    <varlistentry>
  53     <term><replaceable class="parameter">name</replaceable></term>
  54     <listitem>
  55      <para>
  56       The name of an existing foreign-data wrapper.
  57      </para>
  58     </listitem>
  59    </varlistentry>
  60
  61    <varlistentry>
  62     <term><literal>CASCADE</literal></term>
  63     <listitem>
  64      <para>
  65       Automatically drop objects that depend on the foreign-data
  66       wrapper (such as servers).
  67      </para>
  68     </listitem>
  69    </varlistentry>
  70
  71    <varlistentry>
  72     <term><literal>RESTRICT</literal></term>
  73     <listitem>
  74      <para>
  75       Refuse to drop the foreign-data wrappers if any objects depend
  76       on it.  This is the default.
  77      </para>
  78     </listitem>
  79    </varlistentry>
  80   </variablelist>
  81  </refsect1>
  82
  83  <refsect1>
  84   <title>Examples</title>
  85
  86   <para>
  87    Drop the foreign-data wrapper <literal>dbi</>:
  88 <programlisting>
  89 DROP FOREIGN DATA WRAPPER dbi;
  90 </programlisting>
  91   </para>
  92  </refsect1>
  93
  94  <refsect1>
  95   <title>Compatibility</title>
  96
  97   <para>
  98    <command>DROP FOREIGN DATA WRAPPER</command> conforms to ISO/IEC
  99    9075-9 (SQL/MED).  The <literal>IF EXISTS</> clause is
 100    a <productname>PostgreSQL</> extension.
 101   </para>
 102  </refsect1>
 103
 104  <refsect1>
 105   <title>See Also</title>
 106
 107   <simplelist type="inline">
 108    <member><xref linkend="sql-createforeigndatawrapper" endterm="sql-createforeigndatawrapper-title"></member>
 109    <member><xref linkend="sql-alterforeigndatawrapper" endterm="sql-alterforeigndatawrapper-title"></member>
 110   </simplelist>
 111  </refsect1>
 112
 113 </refentry>