SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function ignore (children 1)
     ExpressionList (children 1)
      Function rand (alias k) (children 1)
       ExpressionList
    Function ignore (children 1)
     ExpressionList (children 1)
      Function max (children 1)
       ExpressionList (children 1)
        Function toString (children 1)
         ExpressionList (children 1)
          Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier numbers_10k_log
   ExpressionList (children 1)
    Identifier k
   Literal UInt64_1
