opened
piplive
username_0
explain select sum(money) as allMoney  from person where id=3
result is 
{
  "size" : 0,
  "timeout" : 10000,
  "query" : {
    "term" : {
      "id" : 3
    }
  },
  "aggregations" : {
    "filter" : {
      "filter" : {
        "term" : {
          "id" : 3
        }
      },
      "aggregations" : {
        "sum(Money)" : {
          "sum" : {
            "field" : "Money"
          }
        }
      }
    }
  }
}
the 'money' become  'Money'

I suggest you modify the  251 1ine on Heading.java or SelectParser.java about 'createColumn'
first  bug
issue