Log Message:
-----------
Implementation of operators & (intersection) and && (overlaps)
Modified Files:
--------------
prefix:
prefix.c (r1.22 -> r1.23)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.c.diff?r1=1.22&r2=1.23)
prefix.sql.in (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.sql.in.diff?r1=1.11&r2=1.12)