Most SPARQL endpoints have some extensions allowing for full-text search. Can I do full-text searches with the Amazon Neptune SPARQL endpoint?
SQL queries for highly connected data are complex and hard to tune for performance. Instead, Amazon Neptune allows you to use the popular graph query languages Apache TinkerPop Gremlin and W3C's SPARQL and openCypher to execute powerful queries that are easy to write and perform well on connected data.
Amazon Neptune is a purpose-built, high-performance graph database engine optimized for storing billions of relationships and querying the graph with milliseconds latency.
Amazon Neptune is a fast, reliable, fully managed graph database service that makes it easy to build and run applications.
Neptune integration with Elasticsearch has been release with version 1.0.2.1
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Please refer to this answer for a detailed explanation or check the official documentation.
As of October 2018, full text search is not supported out of the box in Neptune (Gremlin and SPARQL). I would recommend opening a support case with Neptune to get more info around when to expect this feature.
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