SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Function topKDistinctState (children 2)
       ExpressionList (children 1)
        Function toString (children 1)
         ExpressionList (children 1)
          Identifier number
       ExpressionList (children 1)
        Function toNullable (children 1)
         ExpressionList (children 1)
          Literal UInt64_10
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function numbers (children 1)
       ExpressionList (children 1)
        Literal UInt64_100
   ExpressionList (children 2)
    Function tuple (children 1)
     ExpressionList (children 1)
      Function tuple (children 1)
       ExpressionList (children 2)
        Function map (children 1)
         ExpressionList (children 4)
          Function tuple (children 1)
           ExpressionList (children 2)
            Function materialize (children 1)
             ExpressionList (children 1)
              Function toNullable (children 1)
               ExpressionList (children 1)
                Literal UInt64_1
            Literal UInt64_2
          Literal UInt64_4
          Literal Tuple_(UInt64_3, UInt64_4)
          Literal UInt64_5
        Literal UInt64_3
    Function map (children 1)
     ExpressionList (children 4)
      Literal Tuple_(UInt64_1, UInt64_2)
      Literal UInt64_4
      Literal Tuple_(UInt64_3, UInt64_4)
      Function toNullable (children 1)
       ExpressionList (children 1)
        Literal UInt64_5
 Identifier Null
