$other_date = "CAST( $other_date AS TIMESTAMP )" if driver_name =~ /^Pg/i;
$other_date = str2time_sql. $other_date. str2time_sql_closing;
-my $within = ABS( $_date - $other_date ) <= 60;
+my $within = "ABS( $_date - $other_date ) <= 60";
my $in = concat_sql([ '?', "'_IN'" ]);
my $out = concat_sql([ '?', "'_OUT'" ]);