SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Identifier a
    Function arrayEnumerateUniqRanked (children 1)
     ExpressionList (children 1)
      Identifier a
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Subquery (children 1)
              SelectWithUnionQuery (children 1)
               ExpressionList (children 2)
                SelectQuery (children 1)
                 ExpressionList (children 1)
                  Literal Array_[Array_[UInt64_6], Array_[UInt64_1, UInt64_2, UInt64_3, UInt64_4]] (alias a)
                SelectQuery (children 1)
                 ExpressionList (children 1)
                  Literal Array_[Array_[UInt64_3, UInt64_4, UInt64_5]] (alias a)
          ExpressionList (children 1)
           OrderByElement (children 1)
            Identifier a