SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function and (children 1)
     ExpressionList (children 2)
      Identifier flag
      Function lessOrEquals (children 1)
       ExpressionList (children 2)
        Identifier value
        Literal UInt64_10
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 3)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier AA
           TablesInSelectQueryElement (children 2)
            TableExpression (children 1)
             TableIdentifier B (alias t0)
            TableJoin (children 1)
             Function equals (children 1)
              ExpressionList (children 2)
               Identifier AA.key
               Identifier t0.key
           TablesInSelectQueryElement (children 2)
            TableExpression (children 1)
             TableIdentifier C (alias t1)
            TableJoin (children 1)
             Function equals (children 1)
              ExpressionList (children 2)
               Identifier AA.key
               Identifier t1.key
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier ALL
   Set
