https://bugzilla.wikimedia.org/show_bug.cgi?id=45129
Web browser: ---
Bug ID: 45129
Summary: SMWSQLStore3Readers::fetchSemanticData() should in
fact use DISTINCT for blobs
Product: MediaWiki extensions
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Semantic MediaWiki
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
Classification: Unclassified
Mobile Platform: ---
Hi,
There has been an issue with Semantic Forms and SQLStore3 since SQLStore3 was
first released: in autocompletion, some values show up multiple times. (This
may also happen for dropdowns and other input types; I'm not sure.) I finally
looked into this today, and figured out the issue: on line 314 of
includes/storage/SQLStore/SMW_SQLStore3_Readers.php, there's the following:
// Don't use DISTINCT with text blobs:
if ( $typeid == 'l' ) $usedistinct = false;
I don't know who exactly introduced this line, since it looks like it was there
since the SQLStore3 code was first added (though Markus added the comment
line). But I would recommend to either remove it, or have it only called if
$object is null - either way would fix the problem.
-Yaron
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