What is "Schematized Semi-relational Tables" for Google Spanner?

 Posted by Niladri.Biswas on 12/12/2012 | Category: Others Interview questions | Views: 4444 | Points: 40

A hierarchical approach to grouping tables that allows Spanner to co-locate related data into directories that can be easily stored, replicated, locked, and managed on what Google calls spanservers. They have a modified SQL syntax that allows for the data to be interleaved, and the paper mentions some changes to support columns encoded with Protobufs.

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