Log Message:-----------Add table creation and population to example
from John Gage
Modified Files:-------------- pgsql/doc/src/sgml: xfunc.sgml (r1.150 -> r1.151) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/xfunc.sgml?r1=1.150&r2=1.151)
