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Cypher is a declarative graph query language that allows for expressive and efficient data querying in a property graph. [1]Cypher was largely an invention of Andrés Taylor while working for Neo4j, Inc. (formerly Neo Technology) in 2011. [2]
Neo4j comes in five editions. Two are on-premises editions, Community (free) and Enterprise, and three are cloud-only editions: AuraDB Free, AuraDB Professional, and AuraDB Enterprise. It is dual-licensed: GPL v3 (with parts of the code under AGPLv3 with Commons Clause), and a proprietary license. The Community Edition is free but is limited to ...
The Bolt network protocol uses version negotiation to ensure compatibility between clients and servers. Clients send up to four supported protocol versions, encoded as 32-bit integers, prioritizing earlier entries. The server responds with the highest compatible version or a zero value if no match is found, closing the connection.
This is a list of free and open-source software (FOSS) packages, computer software licensed under free software licenses and open-source licenses.Software that fits the Free Software Definition may be more appropriately called free software; the GNU project in particular objects to their works being referred to as open-source. [1]
Its Vertex and Edge objects have unique 64-bit object identifiers that considerably speed up graph navigation and pathfinding operations. It supports batch or streaming updates to the graph alongside concurrent, parallel queries. InfiniteGraph's 'DO' query language enables both value based queries, as well as complex graph queries.
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For example, Apache Tinkerpop [13] forces each node and each edge to have a single label; Cypher allows nodes to have zero to many labels, but relationships only have a single label (called a reltype). Neo4j's database supports undocumented graph-wide properties, Tinkerpop has graph values which play the same role, and also supports ...
It supports the MDX query language, the XML for Analysis and the olap4j interface specifications. Apache Doris is an open-source real-time analytical database based on MPP architecture. It can support both high-concurrency point query scenarios and high-throughput complex analysis. [31]