A revised result on chasing tree patterns under schema graphs

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Journal Article
Information Processing Letters, 2017, 119 pp. 19 - 24
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© 2016 Elsevier B.V. We first provide an example to show that two previously published results in [2] and [4] on tree pattern containment under schema graphs are incorrect. We then show that the original result in [2] holds under some special conditions on the schema graph.
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