pgaccess - pgaccess: a little more speed up in init_pga_tables proc

Log Message:
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a little more speed up in init_pga_tables proc

Modified Files:
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pgaccess:
changelog (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgaccess/pgaccess/changelog.diff?r1=1.8&r2=1.9)
pgaccess/lib:
connections.tcl (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgaccess/pgaccess/lib/connections.tcl.diff?r1=1.2&r2=1.3)
mainlib.tcl (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgaccess/pgaccess/lib/mainlib.tcl.diff?r1=1.4&r2=1.5)