mongodb halloween party

init.js

db.halloween.drop()

tags = [];
[1,2,3,4].forEach(function(num){
    tags.push(''+num);
    db.halloween.insert({
      num: NumberInt(num),
      tags:tags 
    })
})

run.js

function changeState(doc){
  doc.buffer = doc.buffer || []
  doc.buffer.push(Array.apply(null, Array(4096)).map(function() { 
    return { 
        text_1 : '01234567890', text_2 : 'qwertyuiop',
        text_3 : 'asdfghjkl',   text_4 : 'zxcvbnm',
    } 
  }))
}
 
db.halloween.find().forEach(function(doc){
  print('current document: ' + doc.num)
  changeState(doc)
  db.halloween.save(doc)
})