prefix - prefix: penalty fix, some more debug Assert() tied to test data

Log Message:
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penalty fix, some more debug Assert() tied to test data which is numeric only

Modified Files:
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prefix:
prefix.c (r1.29 -> r1.30)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.c.diff?r1=1.29&r2=1.30)
prefix.sql.in (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.sql.in.diff?r1=1.13&r2=1.14)