Track by $index splits string

I am trying to get data from SQLite DB. While displaying data I am getting : “Duplicates in a repeater are not allowed” on ng-repeat error toavoid that I added track by index. But, this created new issue it splits my string and displays single letter as a list.
Following is my code.

$scope.load = function() {

    // Execute SELECT statement to load message from database.
    $cordovaSQLite.execute(db, 'SELECT * FROM Customer_local_ ORDER BY id DESC')
            function(result) {

                if (result.rows.length > 0) {

                    for(var i=0;i<result.rows.length;i++){
                     $scope.arrcust= result.rows.item(i);
                   // $scope.statusMessage = "Message loaded successful, cheers!";
                   console.log("Db data feteched"+result.rows.item(i).first_name+result.rows.length);
                   /* $ionicPopup.alert({title:'Welcome',
         template:'Customer retrived succefully!'+$scope.newMessage});*/
                console.log(" Cust local arr : "+$scope.arrcust.length);
            function(error) {
                $scope.statusMessage = "Error on loading: " + error.message;

ion-item ng-repeat=“item in arrcust track by $index”