Log Message: ----------- handle undef <-> NULL properly
Modified Files:
--------------
plperlng:
plperl.c (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plperlng/plperlng/plperl.c.diff?r1=1.8&r2=1.9)
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TIP 8: explain analyze is your friend
