SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 7)
    Function uniqExact (children 1)
     ExpressionList (children 1)
      Identifier x
    Function length (children 1)
     ExpressionList (children 1)
      Function groupUniqArray (children 1)
       ExpressionList (children 1)
        Identifier x
    Function arrayUniq (children 1)
     ExpressionList (children 1)
      Function groupArray (children 1)
       ExpressionList (children 1)
        Identifier x
    Function uniqExact (children 1)
     ExpressionList (children 1)
      Identifier y
    Function arrayUniq (children 1)
     ExpressionList (children 1)
      Function groupArray (children 1)
       ExpressionList (children 1)
        Identifier y
    Function uniqExact (children 1)
     ExpressionList (children 1)
      Function concat (children 1)
       ExpressionList (children 3)
        Function toString (children 1)
         ExpressionList (children 1)
          Identifier x
        Literal \'_\'
        Identifier y
    Function arrayUniq (children 1)
     ExpressionList (children 2)
      Function groupArray (children 1)
       ExpressionList (children 1)
        Identifier x
      Function groupArray (children 1)
       ExpressionList (children 1)
        Identifier y
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Function round (alias x) (children 1)
            ExpressionList (children 1)
             Function log (children 1)
              ExpressionList (children 1)
               Function intHash32 (children 1)
                ExpressionList (children 1)
                 Identifier number
           Function toString (alias y) (children 1)
            ExpressionList (children 1)
             Function round (children 1)
              ExpressionList (children 1)
               Function cbrt (children 1)
                ExpressionList (children 1)
                 Function intHash32 (children 1)
                  ExpressionList (children 1)
                   Identifier number
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_10000
