where the file name for the source file must be available on the

machine running the backend process, not the client, since the backend process

reads the file directly. You can read more about the

<command>COPY</command> command in <xref linkend="sql-copy"/>.

reads the file directly. The data inserted above into the weather table

could also be inserted from a file containing (values are separated by a

tab character):

<programlisting>

San Francisco 46 50 0.25 1994-11-27

San Francisco 43 57 0.0 1994-11-29

Hayward 37 54 \N 1994-11-29

</programlisting>

You can read more about the <command>COPY</command> command in

<xref linkend="sql-copy"/>.

</para>

</sect1>