Watch for schema design in graph database rollout, business user warns

Developers and architects considering deploying graph databases should spend more time on defining schema than they initially think, according to one multi-national user of the system.

Global science and legal publisher RELX Group, formerly Reed Elsevier, runs a search engine for its content which receives about three-quarters of a trillion requests per year, 95 percent of which are fulfilled by structured data, Erik Schwartz, vice president of product management, knowledge discovery told The Register.

After two years of working with graph database vendor Neo4j to improve citation counts and other use cases on the data, the 10-strong squad of engineers figured that getting the schema right was the thorniest problem.

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