SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Literal \'#02136_scalar_subquery_1\'
    Subquery (alias n) (children 1)
     SelectWithUnionQuery (children 1)
      ExpressionList (children 1)
       SelectQuery (children 2)
        ExpressionList (children 1)
         Function max (children 1)
          ExpressionList (children 1)
           Identifier number
        TablesInSelectQuery (children 1)
         TablesInSelectQueryElement (children 1)
          TableExpression (children 1)
           Function numbers (children 1)
            ExpressionList (children 1)
             Literal UInt64_1000
