text: // Create some load/usage in mongodb for testing
  // Load using: mongoshell, load("/path/to/file/do-some-work.js")
  
  var LOOP = 5;
  var MAX_COUNT = 10000
  
  for (var i = 0; i < LOOP; i++) {
    //db.work.drop()
  
    var count = 0;
  
    db.work.createIndex({ "a": 1, "b": 1, "c": 1, "d": 1 })
    db.work.createIndex({ "a": 1, "b": -1, "c": 1, "d": -1 })
    db.work.createIndex({ "a": -1, "b": 1, "c": -1, "d": 1 })
    db.work.createIndex({ "a": -1, "b": -1, "c": -1, "d": -1 })
  
    while (count < MAX_COUNT) {
        db.work.insertOne(
           {a: count, b: count * count, c: count * count * count, d: 'x'.repeat(count)}
        )
        count += 1;
    }
  }
  