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<chapter id="datatype">

<title id="datatype-title">Data Types</title>

<literal>a</> through <literal>f</>. Output is always in the

last of the forms shown.

</para>

<para>

The directory <filename class="directory">contrib/mac</filename>

in the <productname>PostgreSQL</productname> source distribution

contains tools that can be used to map MAC addresses to hardware

manufacturer names.

</para>

</sect2>

</sect1>