SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Subquery (alias s) (children 1)
     SelectWithUnionQuery (children 1)
      ExpressionList (children 1)
       SelectQuery (children 2)
        ExpressionList (children 2)
         Literal UInt64_1 (alias number)
         Identifier number
        TablesInSelectQuery (children 1)
         TablesInSelectQueryElement (children 1)
          TableExpression (children 1)
           Function numbers (children 1)
            ExpressionList (children 1)
             Literal UInt64_1
    Subquery (alias s2) (children 1)
     SelectWithUnionQuery (children 1)
      ExpressionList (children 1)
       SelectQuery (children 2)
        ExpressionList (children 2)
         Literal UInt64_1
         Identifier number
        TablesInSelectQuery (children 1)
         TablesInSelectQueryElement (children 1)
          TableExpression (children 1)
           Function numbers (children 1)
            ExpressionList (children 1)
             Literal UInt64_1
