LAST and NEXT, as well as (X)HDR and XPAT when the requested header field is not in the overview, try to retrieve each article number, one by one, with ARTopen.
On newsgroups with huge gaps in article numbers, like 1 million, these commands take a long time to respond.
Several minutes in a newsgroup with 2 articles, numbered 1 and 2147483647 for instance.
We should use OVopensearch to directly retrieve the information of available article numbers in overview data and then verify that the article exists with ARTopen (like it is currently done).
The responses of the above NNTP commands are then immediate!
LAST and NEXT, as well as (X)HDR and XPAT when the requested header field is not in the overview, try to retrieve each article number, one by one, with
ARTopen.On newsgroups with huge gaps in article numbers, like 1 million, these commands take a long time to respond. Several minutes in a newsgroup with 2 articles, numbered 1 and 2147483647 for instance.
We should use
OVopensearchto directly retrieve the information of available article numbers in overview data and then verify that the article exists withARTopen(like it is currently done). The responses of the above NNTP commands are then immediate!