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Issue Details [XML]

Key: SES-709
Type: Improvement Improvement
Status: Resolved Resolved
Resolution: Fixed
Priority: Minor Minor
Assignee: Arjohn Kampman
Reporter: Arjohn Kampman
Votes: 0
Watchers: 0
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Sesame

Replace Compare's with bound vars with SameTerm's

Created: 28/Apr/10 04:08 PM   Updated: 28/Apr/10 04:11 PM
Component/s: Query Optimizer
Affects Version/s: None
Fix Version/s: 2.3.2


 Description   
The CompareOptimizer currently replaces Compare operators with more efficient SameTerm operators when one argument is a var and the other is a URI or bnode constant. It should also do this when comparing two vars where one or both vars are bound to a URI or bnode. This also allows further optimization to be performed by the SameTermFilterOptimizer later on in the query optimization process.

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