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<chapter id="plperl">

<title>PL/Perl - Perl Procedural Language</title>

<para>

The <varname>%_SHARED</varname> variable and other global state within

the languageis public data, available to all PL/Perl functions within a

the languageare public data, available to all PL/Perl functions within a

session. Use with care, especially in situations that involve use of

multiple roles or <literal>SECURITY DEFINER</> functions.

</para>