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Issue Details [XML]

Key: SES-675
Type: Bug Bug
Status: Open Open
Priority: Minor Minor
Assignee: Unassigned
Reporter: James Leigh
Votes: 0
Watchers: 0
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Sesame

MySql REGEX fails for null value

Created: 20/Jul/09 02:50 PM   Updated: 20/Jul/09 02:50 PM
Component/s: RDBMS Sail
Affects Version/s: 2.2.4
Fix Version/s: None


 Description   
http://www.openrdf.org/forum/mvnforum/viewthread?thread=2173

An unknown predicate causes a regex to compare with a null value, this should be optimized away and is invalid SQL.

SELECT r0.subj,
NULL ,
r0.obj,
NULL
FROM TRIPLES_14774 r0
WHERE NULL COLLATE utf8_general_ci REGEXP ?

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