diff --git a/doc/src/sgml/plpython.sgml b/doc/src/sgml/plpython.sgml
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index d086ddf..60a5907
*** a/doc/src/sgml/plpython.sgml
--- b/doc/src/sgml/plpython.sgml
*************** SELECT * FROM multiout_simple_setof(3);
*** 768,776 ****
    <title>Sharing Data</title>
    <para>
     The global dictionary <varname>SD</varname> is available to store
!    data between function calls.  This variable is private static data.
     The global dictionary <varname>GD</varname> is public data,
!    available to all Python functions within a session.  Use with
     care.<indexterm><primary>global data</primary>
     <secondary>in PL/Python</secondary></indexterm>
    </para>
--- 768,776 ----
    <title>Sharing Data</title>
    <para>
     The global dictionary <varname>SD</varname> is available to store
!    private data between repeated calls to the same function.
     The global dictionary <varname>GD</varname> is public data,
!    that is available to all Python functions within a session;  use with
     care.<indexterm><primary>global data</primary>
     <secondary>in PL/Python</secondary></indexterm>
    </para>