SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Identifier number
           Function multiIf (alias m) (children 1)
            ExpressionList (children 9)
             Function CAST (children 1)
              ExpressionList (children 2)
               Function less (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_4
               Literal \'UInt8\'
             Function toString (children 1)
              ExpressionList (children 1)
               Identifier number
             Function CAST (children 1)
              ExpressionList (children 2)
               Function less (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_8
               Literal \'LowCardinality(UInt8)\'
             Function toString (children 1)
              ExpressionList (children 1)
               Function multiply (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_10
             Function CAST (children 1)
              ExpressionList (children 2)
               Literal NULL
               Literal \'Nullable(UInt8)\'
             Function toString (children 1)
              ExpressionList (children 1)
               Function multiply (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_100
             Function CAST (children 1)
              ExpressionList (children 2)
               Literal NULL
               Literal \'LowCardinality(Nullable(UInt8))\'
             Function toString (children 1)
              ExpressionList (children 1)
               Function multiply (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_1000
             Function toString (children 1)
              ExpressionList (children 1)
               Function multiply (children 1)
                ExpressionList (children 2)
                 Identifier number
                 Literal UInt64_10000
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_20
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier number
   Set
