GraphQL is SQL on steroids for APIs
还是利用SQL的方式来分析数据，只不过，会根据api的需求来分析数据，通过一种策略去抽象
Whether a Data Analyst, Product Manager, Data Scientist, Business or Data Analyst approaches them, it’s hard to provide a single interface to abstract all heterogeneous data stores away and let them query all the data.
The components of an Analytics API with the Query Engine, Metrics Store, a Data Catalog, an orchestration tool and a SQL connector.