{"id":13657748,"url":"https://github.com/opencypher/openCypher","last_synced_at":"2025-04-24T08:30:38.350Z","repository":{"id":26942569,"uuid":"30405191","full_name":"opencypher/openCypher","owner":"opencypher","description":"Specification of the Cypher property graph query 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.adoc]\n\n= The openCypher Property Graph Query Language\n\nThis repository holds the specification of openCypher, a declarative property graph query language.\nIts purpose is to be central to the process of evolving the specification of openCypher towards https://www.iso.org/standard/76120.html[ISO/IEC 39075 GQL].\n\nThe specification of openCypher includes:\n\n* link:/cip[openCypher Improvement Proposals] (CIPs)\n* link:/grammar[Grammar] (in ISO WG3 BNF notation)\n* link:/tck[Technology Compatibility Kit] (TCK)\n\n== Overview of the process\n\nWith https://www.iso.org/standard/76120.html[ISO/IEC 39075 GQL], the purpose of openCypher is to https://neo4j.com/blog/opencypher-gql-cypher-implementation/[pave the road] to GQL for openCypher implementers.\nChanges to openCypher are made by adding GQL features to openCypher.\n\nRefer to the link:CIP-PROCESS.adoc[Cypher Improvement Process] document for more details on CIPs, CIRs, their structure and lifecycle.\n\n== The structure of this repository\n\n* Cypher Improvement Proposals (CIP), `/cip`\n* openCypher grammar, `/grammar`\n** Contains the openCypher grammar specification, in ISO WG3 BNF notation.\n* Cypher Technology Compatibility Kit (TCK), `/tck`\n** Contains a set of Cucumber features that define openCypher behaviour, and documentation on how to use it.\n* openCypher developer tools, `/tools`\n** Contains code that tests the integrity of the repository and aids implementers of openCypher.\n\n== Building\n\nThis repository uses a Maven build and supports cross building for Scala 2.12 and Scala 2.13:\n\n* For Scala 2.12, use `mvn -U clean install -P scala-212`\n* For Scala 2.13 use `mvn -U clean install -P scala-213`\n\n== Contact us\n\nThere are several ways to get in touch with the openCypher project and its participants:\n\n* Are you interested in implementing openCypher for your platform, but you have general questions and want to reach out to other community members with similar interests? Post to our https://groups.google.com/forum/#!forum/opencypher[Google Groups mailing list]\n* For specific feature requests or bug reports, please open an issue on this repository.\n* Do you have a particular contribution in mind, and concrete ideas on how to implement them? Open a pull request.\n\n== History\n\nPrior to ISO/IEC 39075 GQL, the purpose of openCypher was to define a common language for property graphs, and the evolution of the Cypher® language was driven by the openCypher Implementers Group.\nDocumentation of that time can be found https://opencypher.org/oC9history[the website] and in https://github.com/opencypher/openCypher/tree/master[this branch of the repository].\n\n== Copyright\n\n© Copyright https://neo4j.com[Neo4j, Inc.]\n\n== Feedback\n\nAny feedback you provide to Neo4j, Inc. through this repository shall be deemed to be non-confidential.\nYou grant Neo4j, Inc. a perpetual, irrevocable, worldwide, royalty-free license to use, reproduce, modify, publicly perform, publicly display and distribute such feedback on an unrestricted basis.\n\n== License\n\nThe `openCypher` project is licensed under the http://www.apache.org/licenses/LICENSE-2.0[Apache license 2.0].\n\n== Trademark\n\nNeo4j's trademark policy is available at https://neo4j.com/trademark-policy/[our trademark policy page].\n","funding_links":[],"categories":["Java (78)","Gherkin"],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fopencypher%2FopenCypher","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fopencypher%2FopenCypher","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fopencypher%2FopenCypher/lists"}