Property Graph Queries
List
- https://github.com/szarnyasg/gql-sql-pgq-pointers
- https://www.linkedin.com/pulse/postgresql-oracle-graph-query-language-standards-adoption-green/
- "knowledge tree": "I have proposed an approach to introducing metaproperties into the nested record model that is based on a generalization of XML's idea of "mixed content", and can be seen in the data structures of existing OSS tree-data libraries for e.g. C++ and C#."