SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function CAST (alias stats) (children 1)
     ExpressionList (children 2)
      Function groupArray (children 1)
       ExpressionList (children 1)
        Function tuple (children 1)
         ExpressionList (children 2)
          Identifier table
          Identifier bytes
      Literal \'Map(String, UInt64)\'
   ExpressionList (children 2)
    Function length (children 1)
     ExpressionList (children 1)
      Identifier stats
    Function less (children 1)
     ExpressionList (children 2)
      Function arrayElement (children 1)
       ExpressionList (children 2)
        Identifier stats
        Literal \'t_modify_from_lc_1\'
      Function arrayElement (children 1)
       ExpressionList (children 2)
        Identifier stats
        Literal \'t_modify_from_lc_2\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 4)
          ExpressionList (children 2)
           Identifier table
           Function sum (alias bytes) (children 1)
            ExpressionList (children 1)
             Identifier bytes_on_disk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.parts
          Function and (children 1)
           ExpressionList (children 3)
            Function equals (children 1)
             ExpressionList (children 2)
              Identifier database
              Function currentDatabase (children 1)
               ExpressionList
            Function like (children 1)
             ExpressionList (children 2)
              Identifier table
              Literal \'t_modify_from_lc%\'
            Identifier active
          ExpressionList (children 1)
           Identifier table
