SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Identifier id (alias id2)
    Identifier name (alias value)
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier merge_tree_in_subqueries
   Function in (children 1)
    ExpressionList (children 2)
     Function tuple (children 1)
      ExpressionList (children 2)
       Identifier id
       Identifier num
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 1)
        SelectQuery (children 3)
         ExpressionList (children 2)
          Identifier number
          Function plus (children 1)
           ExpressionList (children 2)
            Identifier number
            Literal UInt64_6
         TablesInSelectQuery (children 1)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier system.numbers
         Literal UInt64_10
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id
