Log Message:-----------added a couple more types that cannot be empty strings
Modified Files:-------------- pgaccess/lib: tables.tcl (r1.4 -> r1.5) (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgaccess/pgaccess/lib/tables.tcl.diff?r1=1.4&r2=1.5)
