SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function groupUniqArray (children 1)
     ExpressionList (children 1)
      Identifier v
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function values (children 1)
       ExpressionList (children 3)
        Literal \'id int, v Array(int)\'
        Function tuple (children 1)
         ExpressionList (children 2)
          Literal UInt64_1
          Literal Array_[UInt64_2]
        Function tuple (children 1)
         ExpressionList (children 2)
          Literal UInt64_1
          Function array (children 1)
           ExpressionList
   ExpressionList (children 1)
    Identifier id