apoc.coll.toSet Function apoc.coll.toSet(coll LIST<ANY>) - returns a unique LIST<ANY> from the given LIST<ANY>. Signature apoc.coll.toSet(values :: LIST<ANY>) :: LIST<ANY> Input parameters Name Type Default values LIST<ANY> null Usage examples The following converts a list to a set: RETURN apoc.coll.toSet([1,1,2,1,3,4,1]) AS output; Table 1. Results Output [1, 2, 3, 4] apoc.coll.sumLongs apoc.coll.union