"map frame" worth of data for display. Using a "BOX3D" object for the frame,
such a query looks like this:</para>
<literallayout>SELECT AsText(GEOM) AS GEOM FROM ROADS_GEOM
- WHERE GEOM && GeometryFromText('BOX3D(191232 243117,191232 243119)',-1);</literallayout>
+ WHERE GEOM && GeometryFromText('BOX3D(191232 243117,191232 243119)'::box3d,-1);</literallayout>
<para>Note the use of the SRID, to specify the projection of the BOX3D. The -1 is used to indicate no specified SRID.</para>
</sect2>
<sect2>