FROM issues
LEFT JOIN items USING (itemnumber)
LEFT OUTER JOIN branches USING (branchcode)
-WhERE returndate is NULL
-AND ( TO_DAYS( NOW() )-TO_DAYS( date_due ) ) < ?
+WHERE returndate is NULL
+HAVING days_until_due > 0 AND days_until_due < ?
END_SQL
my @bind_parameters = ( $params->{'days_in_advance'} );