apoc.coll.duplicates Function APOC Core apoc.coll.duplicates(coll) - returns a list of duplicate items in the collection Signature apoc.coll.duplicates(coll :: LIST? OF ANY?) :: (LIST? OF ANY?) Input parameters Name Type Default coll LIST? OF ANY? null Usage Examples The following returns a list of duplicates in a list: RETURN apoc.coll.duplicates([1,3,5,7,9,9]) AS output; Table 1. Results Output [9] apoc.coll.dropDuplicateNeighbors apoc.coll.duplicatesWithCount