SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Identifier k
    Function arraySort (children 1)
     ExpressionList (children 1)
      Function topK (children 1)
       ExpressionList (children 1)
        Identifier v
   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 modulo (alias k) (children 1)
            ExpressionList (children 2)
             Identifier number
             Literal UInt64_7
           Function arrayMap (alias v) (children 1)
            ExpressionList (children 2)
             Function lambda (children 1)
              ExpressionList (children 2)
               Function tuple (children 1)
                ExpressionList (children 1)
                 Identifier x
               Function arrayMap (children 1)
                ExpressionList (children 2)
                 Function lambda (children 1)
                  ExpressionList (children 2)
                   Function tuple (children 1)
                    ExpressionList (children 1)
                     Identifier x
                   Function if (children 1)
                    ExpressionList (children 3)
                     Function equals (children 1)
                      ExpressionList (children 2)
                       Identifier x
                       Literal UInt64_0
                     Literal NULL
                     Function toString (children 1)
                      ExpressionList (children 1)
                       Identifier x
                 Function range (children 1)
                  ExpressionList (children 1)
                   Identifier x
             Function range (children 1)
              ExpressionList (children 1)
               Function intDiv (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_1
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_10
   ExpressionList (children 1)
    Identifier k
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier k
