Subject:
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Re: Apply skip filter settings to searches.
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Newsgroups:
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lugnet.admin.general
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Date:
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Wed, 7 Jul 2004 20:42:07 GMT
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Viewed:
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568 times
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In lugnet.admin.general, Don Heyse wrote:
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In lugnet.admin.general, Todd Lehman wrote:
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In lugnet.admin.general, Kevin Salm wrote:
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I always thought off-topic groups did not show up in search results??
Is this broken now??
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Nothing has changed here, no.
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Silly me, I should have checked. Would it be worthwhile to post
in admin.suggestions? Apparently this came up 4 years ago and
you hinted that it might be an easy fix?
http://news.lugnet.com/off-topic/debate/?n=8187
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Well, back with the old, slow search engine, at the time I wrote that, it may’ve
been fairly easy. Two weeks after that, however, I wrote a brand new search
indexer and results engine which runs on the order of 100 times faster, but
which doesn’t make such filtering so easy. The old way, what it did was found
all the results first, then filtered out everything that wasn’t in the group you
were looking in -- a lot of waste. The new way, in addition to being tight C
code, uses a completely different approach for indexing: every group, at every
level of the hierarchy, has an index file of all articles within that subtree.
This intersection of this list and a given word-hit’s list is computed and
returned as search results. For the top-level tree (e.g., the entire site
encompassing all newsgroups), the index file is essentially a list of all the
articles (minus things like .test, .statistics, etc.), and for any given
article, the results engine doesn’t know what group the article is in -- it’s
just a very fast set processor.
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