Last modified: 2010-05-15 15:42:43 UTC

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Bug 7726 - Searches less than 4 characters long don't work
Searches less than 4 characters long don't work
Status: RESOLVED FIXED
Product: MediaWiki
Classification: Unclassified
Search (Other open bugs)
1.8.x
Other Linux
: Normal normal (vote)
: ---
Assigned To: Andrew Garrett
:
: 13423 (view as bug list)
Depends on:
Blocks: 42
  Show dependency treegraph
 
Reported: 2006-10-27 12:14 UTC by Henry Cocozzoli
Modified: 2010-05-15 15:42 UTC (History)
2 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Attachments
Proposed patch (1.50 KB, patch)
2008-10-27 14:22 UTC, Andrew Garrett
Details

Description Henry Cocozzoli 2006-10-27 12:14:40 UTC
Search for "files".   Get a list of docs.
Search for "JPG".  Get no list, even if it appears on previous search.

Wiki running on Ubuntu Linux 6.06 LTS
MediaWiki: 1.8.2 (r14403) 
PHP: 5.1.2 (apache2handler) 
MySQL: 5.0.22-Debian_0ubuntu6.06.2-log 
visited from 134.244.170.207
Retrieved from "http://calvin/wiki/index.php/Special:Version"

Accessed from Win XP SP2  IE 6 or 7.
Comment 1 Brion Vibber 2006-10-27 12:16:26 UTC
See the FAQ.
Comment 2 Brion Vibber 2008-03-18 20:37:23 UTC
*** Bug 13423 has been marked as a duplicate of this bug. ***
Comment 3 Brion Vibber 2008-03-19 00:39:03 UTC
Reopening this...

We could work around this by applying a transformation on input to bypass the server-wide length limit. Lame perhaps, but at least it would make things work for people. :)
Comment 4 Andrew Garrett 2008-10-27 14:22:07 UTC
Created attachment 5477 [details]
Proposed patch

Proposed patch.

Also cleans up the use of /e modifier (which isn't allowed in new code at the moment) for the rest of the function in question, splitting out into callback functions.

Essentially, it just prefixes any words 4 chars or shorter with 'SMALL', bringing them above the threshold.

We might want to consider looking for certain 'stop' words and disallowing those regardless...
Comment 5 Brion Vibber 2008-11-25 02:45:18 UTC
Fixed in r43920 -- Short words are padded so they now get indexed. Yay!

Adapted part of Werdna's patch, with some additional cleanup:
* Using 'U00' to pad instead of 'SMALL' to reduce false positives (eg search for "small*" could match "Smallville" and "SMALLc")
* Checking server's ft_min_word_len variable to see if we need to do anything. This preserves index compatibility with existing installations which have customized their index length.
* Some further cleanup on redundant code -- just toss everything through lc() and be done with it :D
* Cleaned out some more evals in zh and yue classes :P
* Fixed yue class to call the parent adjustor properly
Comment 6 Aryeh Gregor (not reading bugmail, please e-mail directly) 2009-03-02 15:14:34 UTC
The fix for this seems to have caused bug 17733.

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