Context-free constraints in Cypher

[gsvgit]

There is a proposal for openCypher to introduce syntax for path constraints specification:

• Root
• Context-free constraints in the original CIP

We are working on context-free path querying for RedisGraph which uses Cypher via libsypher.

It is necessary

• to extend libcypher to be able to use context-free (CF) constraints in Cypher
• to extend RedisGraph translator to support CF constraints
• introduce grammar normalization
• integrate with our CFPQ agorithm