Slow Performance in SEM_MATCH Query (Doc ID 1405554.1)

Last updated on FEBRUARY 08, 2017

Applies to:

Oracle Spatial - Version: 11.2.0.3 and later   [Release: 11.2 and later ]
Information in this document applies to any platform.

Symptoms


Semantic Queries taking long time to execute


SELECT x, y
FROM TABLE(SEM_MATCH(
'{?x :grandParentOf ?y . ?x rdf:type :Male}',
SEM_Models('family'),
SEM_Rulebases('RDFS','family_rb'),
SEM_ALIASES(SEM_ALIAS('','http://www.example.org/family/')),
null));

Cause

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