Does Cypher even support nested and/or recursive queries? I remember asking the Neo4j guys at a meetup about that many years ago, and they didn't even seem to understand the question. Might have changed since then of course.
Otherwise the thing I have noticed with the datalog (as well as prolog) syntax, is you are able to build a vocabulary of re-usable queries, in a much more usable was than any of the solutions I've seen in SQL, or other similar languages.
It thus allows you to raise your level of abstraction, by layer by layer define your definitions (or "classes" if you will) with well crafted queries, that can be used for further refined classifying queries.
Re Datalog syntax: yes, the "composability" is the main reason that I decided to adopt it as the query language. This is also the reason why we made storing query results back into the database very easy (no pre-declaration of "tables" necessary) so that intermediate results can be materialized in the database at will and be used by multiple subsequent queries.
Otherwise the thing I have noticed with the datalog (as well as prolog) syntax, is you are able to build a vocabulary of re-usable queries, in a much more usable was than any of the solutions I've seen in SQL, or other similar languages.
It thus allows you to raise your level of abstraction, by layer by layer define your definitions (or "classes" if you will) with well crafted queries, that can be used for further refined classifying queries.