what is the status of the Neo4j's language Cypher? I really like it, but I would like to avoid the Neo4j lock-in. Are there some other Cypher interface like there are in Gremlin?
Regards
Is Neo4j's Cypher query language open-source?
Cypher is totally OSS, see https://github.com/neo4j/community/tree/master/cypher . Right now there is one implementation, but potentially there can be more. It's just too early in the evolution to make it a standard, we are still heavily experimenting with it.
Thank you for the answer, Peter. GPLv3 means we can not use it in a commercial product, right? Is there a compatibility layer to Neo4j like "Blueprints" in the Tinkerpop stack? We would like to use cypher on our c++ based db. –
Sherbrooke
i think you can use it, but you cannot not modify it unless you make the modified output GPLv3. –
Screamer
Exactly, you can use it, just not distribute it (Webapp is fine). And, there is commercial licensing that goes around the issue. Contact me. –
Alongshore
openCypher has been implemented by many databases. According to their site these are some of them:
- Agens Graph: A multi-model database
- Amazon Neptune
- AnzoGraph: A native massively parallel (MPP) graph analytical database
- ArcadeDB
- CAPS: Cypher for Apache Spark
- Cypher for Gremlin
- Katana Graph
- Memgraph: An in-memory, transactional graph database
- Neo4j: A native, transactional property graph database
- RedisGraph: A graph module for Redis
- SAP HANA Graph
Check out Pixy, a declarative graph query language that works on any Blueprints-compatible graph database. It is built on Gremlin/Pipes from the Tinkerpop software stack.
Pixy enables complex pattern matching and logic programming on graph databases by translating PROLOG-style rules and goals to Gremlin pipelines that represent graph traversal operations. It has some additional advantages over Cypher, other than avoiding vendor lock-in.
Pixy is available under the Apache 2.0 license.
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