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Fig. 1. The Structure of Multi-SQL
Fig. 3. Document model
Fig. 4. Graph Model
Fig. 5. Social media data stored as four data models
+2 Fig. 6.
Multi-SQL: An extensible multi-model data query language
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  • Nov 2020
Big data management aims to establish data hubs that support data in multiple models and types in an all-around way. Thus, the multi-model database system is a promising architecture for building such a multi-model data store. For an integrated data hub, a unified and flexible query language is incredibly necessary. In this paper, an extensible and...
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... In Figure 4, if we want to query node n 1 , we can use operation η N =n1 (G). If we query the edge between n1 and n2, it is represented as ψ <n1,n2,nnt1> (G). ...

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