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Explore the new openCypher custom functions and subquery support in Amazon Neptune
- Amazon Neptune has released openCypher features as part of the 1.4.2.0 engine update, offering support for custom functions and CALL subqueries.
- Neptune is a managed graph database service providing open graph query languages like openCypher, Apache TinkerPop Gremlin, and SPARQL 1.1.
- The latest engine release introduced features including CALL subqueries for running specific queries on a node-by-node basis.
- The CALL function enables executing additional MATCH statements against a collection of data in openCypher queries.
- Neptune's openCypher custom functions include textIndexOf, collToSet, collSubtract, collIntersection, collSort, collSortMaps, collSortMulti, and collSortNodes.
- These functions support tasks like searching text, creating unique sets, and sorting collections of data in various ways.
- Examples provided showcase how these custom functions can be utilized for advanced querying and data manipulation in Neptune.
- Users can now leverage these new features to enhance their graph applications and perform complex operations efficiently.
- Neptune also offers options for bulk loading data into Neptune Database or Neptune Analytics, providing practical data management solutions.
- The post concludes with suggestions on getting started with Neptune, such as creating clusters, upgrading to the latest version, and using open source tools like graph-explorer.
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