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A Join Operator for Property Graphs
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology, Computing Science.ORCID iD: 0000-0002-3437-9018
University of Bologna.
2017 (English)In: EDBT/ICDT Workshops, 2017Conference paper, Published paper (Refereed)
Abstract [en]

In the graph database literature the term “join” does not refer to an operator combining two graphs, but involves path traversal queries over a single graph. Current languages express binary joins through the combination of path traversal queries with graph creation operations. Such solution proves to be not efficient.

In this paper we introduce a binary graph join opera- tor and a corresponding algorithm outperforming the solution proposed by query languages for either graphs (Cypher, SPARQL) and relational databases (SQL). This is achieved by using a specific graph data structure in secondary memory showing better performance than state of the art graph libraries (Boost Graph Library, SNAP) and database systems (Sparksee). 

Place, publisher, year, edition, pages
2017.
National Category
Computer Science
Identifiers
URN: urn:nbn:se:uu:diva-335338OAI: oai:DiVA.org:uu-335338DiVA: diva2:1162448
Conference
EDBT
Available from: 2017-12-04 Created: 2017-12-04 Last updated: 2017-12-04

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CiteExportLink to record
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