diff --git a/script/partitioning.pl b/script/partitioning.pl
index d0d7bb7..51773ed 100755
--- a/script/partitioning.pl
+++ b/script/partitioning.pl
@@ -54,11 +54,11 @@ sub inizializza {
 
 	printf  "Inizio attivita' %s\n",strftime('%d-%m-%Y %H:%M:%S',localtime) if ($messaggi);
 
-	$part = "ALTER TABLE $tabella PARTITION BY RANGE ( unix_timestamp($campo) ) (\n";
+	$part = "ALTER TABLE $tabella PARTITION BY RANGE ( TO_DAYS($campo) ) (\n";
 
 	$query = "	SELECT 
 				DATE_FORMAT($campo, \"%Y%m%d\") AS giorno, 
-				unix_timestamp($campo) AS partenza
+				DATE_FORMAT($campo, '%Y-%m-%d') AS partenza
 			FROM 
 				$tabella
 			GROUP BY 
@@ -72,7 +72,7 @@ sub inizializza {
 	while (my $dato = $sts->fetchrow_hashref) {
 		my $giorno = $$dato{'giorno'};
 		my $partenza = $$dato{'partenza'};
-		$part .= "\tPARTITION p$giorno VALUES LESS THAN ( '$partenza' ),\n";
+		$part .= "\tPARTITION p$giorno VALUES LESS THAN ( TO_DAYS('$partenza') ),\n";
 	}
 	$part .= "\tPARTITION p99999999 VALUES LESS THAN (MAXVALUE)\n";
 	$part .= ");\n";