The official website of neo4j point out that we can not pass parameters to the type of relationships. However, I need to pass parameters to relationships when adding embeddings in batch. Neo4j adds batch vectors for nodes by driver.execute_query(''' UNWIND $movies as movie MATCH (m:Movie {title: movie.title, plot: movie.plot}) CALL db.create.setNodeVectorProperty(m, 'embedding', movie.embedding) ''', movies=nodes_with_embeddings, database_=DB_NAME) add embedding property for nodes This code use $movies to pass parameters and pass movie.title as property value. Each movie is a dict. However, I can not pass relationship types with $datas like MATCH (h:Entity {id: data.id})-[r: data.r]->(t:Entity {id: data.id}) I've tried to use common concatenation for strings to pass parameters, and add embedding property one by one. For example, "MATCH (h:Entity {id: data.h_id})-[r:"+data['r']+"]->(t:Entity {id: data.t_id}) However, I want to use batch operation to speed up. Is there a way to pass parameters to the relationships for batch operation? Thanks for your time. Continue reading...