unsigned integer al posto di decimal nella query per estraz ftp

LoadCSVData.pl

@@ -179,7 +179,7 @@ sub trxelab {
         speed, speed_local, acceleration, acceleration_local, T_node, water_level, pressure, load_value, AlfaX, AlfaY, calcerr
         from ElabDataView
         where UnitName = '$unit' and ToolNameID = '$tool' and updated_at > '$matlab_timestamp'
-        order by ToolNameID DESC, EventDate, EventTime, convert(`NodeNum`, decimal) DESC
+        order by ToolNameID DESC, EventDate, EventTime, convert(`NodeNum`, UNSIGNED INTEGER) DESC
     ) resulting_set
     into outfile '$fileelab'
     fields terminated by ',' optionally enclosed by '"' lines terminated by '\n'}