Third openCypher Implementers Meeting (oCIM 3) - 13 November 2017

This was the third face-to-face meeting for people, projects and organizations who are interested in

  • implementing part or whole of the Cypher graph query language, including current implementers
  • the design and development of a standard declarative query language for graph databases, and want to see how Cypher could evolve to reach that goal

oCIM is a conference organised by the openCypher project.


The conference is dedicated to the topic of compositional queries and Multiple Graphs, which is viewed as a central theme for Cypher 10, the first openly specified, standard version of Cypher. This complex topic will be discussed in several sessions throughout the day (the detailed programme may be found here), with the aim of arriving at a provisional acceptance of the concepts, semantics, and syntax of the language features.


The third oCIM was held in Room A008 at the Inria Nancy Center, 615 rue du Jardin Botanique, 54600 Villers-lès-Nancy, France, on Monday the 13th of November 2017, and is co-located with BDA 2017: the 33rd Conference on Data Management - Principles, Technologies and Applications.


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Opening and coffee


From Cypher 9 to Cypher 10

Compositional queries and Multiple Graphs

Comparison with SQL and SPARQL

Accessing Multiple Graphs

Query Composition

Graph Modification



Classes of graphs and graph sharing

Graph Persistence

Query Morphology


Named Queries and Views

Actions and future meetings