Path: utzoo!utgpu!watserv1!watmath!att!bu.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!cs.utexas.edu!bcm!convex!egsner!ataritx!dms3b1!dave
From: dave@dms3b1.uucp (Dave Hanna)
Newsgroups: news.software.b
Subject: Re: C news aliases in the active file
Summary: XRef mechanism not catching articles cross-posted to aliased NG's
Message-ID: <1991Feb3.172937.7131@dms3b1.uucp>
Date: 3 Feb 91 17:29:37 GMT
References: <1991Jan28.170455.18630@cjsa.wa.com> <1991Jan29.205226.7456@zoo.toronto.edu>
Reply-To: dave@dms3b1.UUCP (Dave Hanna)
Organization: Infotouch Systems, Inc., Dallas
Lines: 34

In article <1991Jan29.205226.7456@zoo.toronto.edu> henry@zoo.toronto.edu (Henry Spencer) writes:
|In article <1991Jan28.170455.18630@cjsa.wa.com> jeff@cjsa.wa.com (Jeffery Small) writes:
|>If someone crossposts an article to both of these groups, then C news
|>generates two copies of the article in "comp.sys.3b1".  Both copies have
|>the same message ID and in fact, the files are identical in the spool
|>directory.
|
|In fact, if you look carefully, you will find that they are, in fact,
|two links to the same file.
|
|>Is there a clean and simple way to eliminate the duplication of these
|>articles?
|
|Nothing off-the-shelf.  A newsreader that respects the Xref header line
|will only show you one of them anyway.  

At least at this site, that is not so.  I'm running rn at patch level 47,
(on a AT&T 3b1, Sys V)
and it does seem to be properly handling normal cross-posted articles,
(i.e., an article cross-posted in misc.forsale and misc.forsale.computers,
when read in misc.forsale, was not shown to me in misc.forsale.computers),
but it is definitely showing both copies of articles cross-posted in 
unix-pc.general and comp.sys.3b1.

Can anyone validate Henry's statement, or do I have a configuration 
problem in my version of rn?  How about anyone with other newsreaders?
>If the Space Shuttle was the answer,   | Henry Spencer at U of Toronto Zoology


-- 
Dave Hanna,  Infotouch Systems, Inc. |  "Do or do not -- There is no try"
P.O. Box 584, Bedford, TX 76095      |                        - Yoda
(214) 358-4534   (817) 540-1524      |
UUCP:  ...!letni!dms3b1!dave         |