I'm doing a live search where I execute queries as the user types.

I have a listener on my search field, and every time the user hits a key on the keyboard, I do a new search query.

searchField.addEventListener('change',function(e){
var rows = db.execute('...'); //Query
var data=[];
    //Loop through each row
    while (rows.isValidRow()) {                    

        //Create row                
           var row = Titanium.UI.createTableViewRow({ 
                      className: 'searchResultsRow'
                   });
            //Create row labels
            var rowTitle =  Titanium.UI.createLabel({ 
                text:rows.fieldByName('LocationID'), 
                //text style                
            });
            var rowSubTitle = Titanium.UI.createLabel({
                text:rows.fieldByName('Name'),
                //text style
            });                
            row.add(rowTitle);
            row.add(rowSubtitle);                        
            row.className = 'searchResultsRow';                
            data.push(row);
            searchResults.setData(data);                    
        rows.next();        
    }
    rows.close();
});

This is all fine and good, except that the search is pretty slow. I know this is because if the user types 4 letters really quickly, my app does a query on 1 letter, another query on 2 letters, etc. until finally doing that last query.

How do I cut a prior query short and always be querying on the latest text change?