SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 3)
    Function groupArray (alias counts) (children 1)
     ExpressionList (children 1)
      Identifier number
    Function arraySum (alias hello) (children 1)
     ExpressionList (children 1)
      Function arrayMap (children 1)
       ExpressionList (children 2)
        Function lambda (children 1)
         ExpressionList (children 2)
          Function tuple (children 1)
           ExpressionList (children 1)
            Identifier x
          Function plus (children 1)
           ExpressionList (children 2)
            Identifier x
            Literal UInt64_1
        Identifier counts
    Function arrayMap (alias res) (children 1)
     ExpressionList (children 2)
      Function lambda (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 1)
          Identifier x
        Function divide (children 1)
         ExpressionList (children 2)
          Identifier x
          Identifier hello
      Identifier counts
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_1000000
 Identifier Null