Last modified: 2008-06-08 16:03:53 UTC

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Bug 13960 - Semantic inline query by property that has non-english name returns nothing.
Semantic inline query by property that has non-english name returns nothing.
Status: RESOLVED WORKSFORME
Product: MediaWiki extensions
Classification: Unclassified
Semantic MediaWiki (Other open bugs)
unspecified
PC Linux
: Normal normal (vote)
: ---
Assigned To: Nobody - You can work on this!
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2008-05-05 19:34 UTC by Fix
Modified: 2008-06-08 16:03 UTC (History)
1 user (show)

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


Attachments
That patch seems to solve the issue (17.01 KB, patch)
2008-05-06 10:31 UTC, Fix
Details

Description Fix 2008-05-05 19:34:18 UTC
When I try to search by property that has non-english name,
inline query returns nothing.

The page "/wiki/Special:SearchByProperty/.../..." gives proper results.

English names also work fine.

This bug cannot be reproduced at http://sandbox.semantic-mediawiki.org/


SMW: 1.1.1 (converted from 0.7)
MediaWiki: 0.11.0rc1
PHP 5.2.0
MySQL: 5.0.32
OS: Debian 4.0 i586
Comment 1 Fix 2008-05-06 10:31:24 UTC
Created attachment 4881 [details]
That patch seems to solve the issue

Columns in temporary tables need to be created as 'character set utf8 collate utf8_bin' instead of 'binary'.
Comment 2 Danny B. 2008-05-19 01:42:58 UTC
Please attach unzipped patch.
Comment 3 Markus Krötzsch 2008-06-08 16:03:53 UTC
We create all SMW tables with "binary", while "utf8" is an experimental setting used on some MediaWiki installations. The new SMW store will hardly rely on any MediaWiki tables, so it should be fine to use "binary". Otherwise, the code has to know what format the MediaWiki tables are in (or there would probably be a MySQL collation error). Setting the format to hardcoded utf8 is not an option.

I set this bug to WORKSFORME since I believe it should work in the new storage engine (it has no string fields in the temporary tables at all). This new store will be released with the next SMW version. If you run the development version of SMW, you can try this out already as follows:

(1) Run the maintenance script 

 SMW_setup.php -b SMWSQLStore2

(2) Run the maintenance scripts

 SMW_refreshData.php -vtpb SMWSQLStore2
 SMW_refreshData.php -vb SMWSQLStore2

These are long-running scripts. Please check your memory use while using them (there are PHP memory leaks in PHP 5 that consume much memory). Use the parameters -s and -e to refresh your wiki in chunks if needed.

(3) Insert the line

 $smwgDefaultStore = 'SMWSQLStore2';

into your LocalSettings.php. Only this switches your storage engine. Try some pages afterwards, and comment out the line again if you wish to use the old SMWSQLStore engine again. Please report any troubles here or on the support mainling list semediawiki-user.

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