Dunno how close it is to being ready for production, but it lets you use Cypher in PostgreSQL, which is a pretty damn nice language for doing many of the things you'd use recursive CTEs for. I don't much care for Neo4j (the "home" database for the Cypher language) but Cypher is good.
https://age.apache.org
Dunno how close it is to being ready for production, but it lets you use Cypher in PostgreSQL, which is a pretty damn nice language for doing many of the things you'd use recursive CTEs for. I don't much care for Neo4j (the "home" database for the Cypher language) but Cypher is good.