SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function sumMapFiltered (children 2)
     ExpressionList (children 2)
      Function array (children 1)
       ExpressionList (children 1)
        Identifier x
      Function array (children 1)
       ExpressionList (children 1)
        Identifier y
     ExpressionList (children 1)
      Literal Array_[Float64_6.7]
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function values (children 1)
       ExpressionList (children 7)
        Literal \'x Float64, y Float64\'
        Literal Tuple_(UInt64_0, UInt64_1)
        Literal Tuple_(UInt64_1, Float64_2.3)
        Literal Tuple_(Float64_nan, Float64_inf)
        Literal Tuple_(Float64_6.7, UInt64_3)
        Literal Tuple_(UInt64_4, UInt64_4)
        Literal Tuple_(UInt64_5, UInt64_1)
