| <!-- |
| $PostgreSQL: pgsql/doc/src/sgml/ref/load.sgml,v 1.25 2008/11/14 10:22:47 petere Exp $ |
| --> |
| |
| <refentry id="SQL-LOAD"> |
| <refmeta> |
| <refentrytitle id="SQL-LOAD-TITLE">LOAD</refentrytitle> |
| <manvolnum>7</manvolnum> |
| <refmiscinfo>SQL - Language Statements</refmiscinfo> |
| </refmeta> |
| |
| <refnamediv> |
| <refname>LOAD</refname> |
| <refpurpose>load or reload a shared library file</refpurpose> |
| </refnamediv> |
| |
| <indexterm zone="sql-load"> |
| <primary>LOAD</primary> |
| </indexterm> |
| |
| <refsynopsisdiv> |
| <synopsis> |
| LOAD '<replaceable class="PARAMETER">filename</replaceable>' |
| </synopsis> |
| </refsynopsisdiv> |
| |
| <refsect1 id="sql-load-description"> |
| <title>Description</title> |
| |
| <para> |
| This command loads a shared library file into the <productname>PostgreSQL</> |
| server's address space. If the file had been loaded previously, |
| it is first unloaded. This command is primarily useful to unload |
| and reload a shared library file that has been changed since the |
| server first loaded it. To make use of the shared library, |
| function(s) in it need to be declared using the <xref |
| linkend="sql-createfunction" endterm="sql-createfunction-title"> |
| command. |
| </para> |
| |
| <para> |
| The file name is specified in the same way as for shared library |
| names in <xref linkend="sql-createfunction" endterm="sql-createfunction-title">; in particular, one |
| can rely on a search path and automatic addition of the system's standard |
| shared library file name extension. See <xref linkend="xfunc-c"> for |
| more information on this topic. |
| </para> |
| |
| <indexterm> |
| <primary><filename>$libdir/plugins</></primary> |
| </indexterm> |
| |
| <para> |
| Non-superusers can only apply <command>LOAD</> to library files |
| located in <filename>$libdir/plugins/</> — the specified |
| <replaceable class="PARAMETER">filename</replaceable> must begin |
| with exactly that string. (It is the database administrator's |
| responsibility to ensure that only <quote>safe</> libraries |
| are installed there.) |
| </para> |
| </refsect1> |
| |
| <refsect1 id="sql-load-compat"> |
| <title>Compatibility</title> |
| |
| <para> |
| <command>LOAD</command> is a <productname>PostgreSQL</productname> |
| extension. |
| </para> |
| </refsect1> |
| |
| |
| <refsect1> |
| <title>See Also</title> |
| |
| <para> |
| <xref linkend="sql-createfunction" endterm="sql-createfunction-title"> |
| </para> |
| </refsect1> |
| </refentry> |