Describes graph storage in Cassandra keyspace and table.

DataStax Graph (DSG) uses Cassandra to store schema and data. One Cassandra keyspace is created for each graph. For example, for a graph called food, creates the keyspace food - there is a one-to-one correspondence. Metadata is stored to identify whether a graph uses older schema (Classic) or the improved schema of DSG 6.8. In a graph keyspace, a single table is created for each vertex label and each edge label to store the vertices and edges, respectively. DSG has a straightforward correspondence between vertices and edges to table rows and columns that can be explored in CQL.