Log Message:
-----------
Make sure data_at_exec parameters are cleared by SQLCancel {Dave Page & Ludek Finstrle, with test case from Andrus]
Modified Files:
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psqlodbc:
execute.c (r1.72 -> r1.73)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/psqlodbc/psqlodbc/execute.c.diff?r1=1.72&r2=1.73)