<!--

$PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.35 2004/12/30 21:45:36 tgl Exp $

$PostgreSQL: pgsql/doc/src/sgml/plperl.sgml,v 2.36 2005/01/17 03:04:17 momjian Exp $

-->

<chapter id="plperl">

</varlistentry>

<varlistentry>

<term><literal>$_TD{name}</literal></term>

<term><literal>$_TD-&gt;{name}</literal></term>

<listitem>

<para>

Name of the trigger being called

</varlistentry>

<varlistentry>

<term><literal>$_TD{event}</literal></term>

<term><literal>$_TD-&gt;{event}</literal></term>

<listitem>

<para>

Trigger event: <literal>INSERT</>, <literal>UPDATE</>, <literal>DELETE</>, or <literal>UNKNOWN</>

</varlistentry>

<varlistentry>

<term><literal>$_TD{when}</literal></term>

<term><literal>$_TD-&gt;{when}</literal></term>

<listitem>

<para>

When the trigger was called: <literal>BEFORE</literal>, <literal>AFTER</literal>, or <literal>UNKNOWN</literal>

</varlistentry>

<varlistentry>

<term><literal>$_TD{level}</literal></term>

<term><literal>$_TD-&gt;{level}</literal></term>

<listitem>

<para>

The trigger level: <literal>ROW</literal>, <literal>STATEMENT</literal>, or <literal>UNKNOWN</literal>

</varlistentry>

<varlistentry>

<term><literal>$_TD{relid}</literal></term>

<term><literal>$_TD-&gt;{relid}</literal></term>

<listitem>

<para>

OID of the table on which the trigger fired

</varlistentry>

<varlistentry>

<term><literal>$_TD{relname}</literal></term>

<term><literal>$_TD-&gt;{relname}</literal></term>

<listitem>

<para>

Name of the table on which the trigger fired

</varlistentry>

<varlistentry>

<term><literal>@{$_TD{argv}}</literal></term>

<term><literal>@{$_TD-&gt;{argv}}</literal></term>

<listitem>

<para>

Arguments of the trigger function

</varlistentry>

<varlistentry>

<term><literal>$_TD{argc}</literal></term>

<term><literal>$_TD-&gt;{argc}</literal></term>

<listitem>

<para>

Number of arguments of the trigger function