apoc.coll.unionAll Function APOC Core apoc.coll.unionAll(first, second) - creates the full union with duplicates of the two lists Signature apoc.coll.unionAll(first :: LIST? OF ANY?, second :: LIST? OF ANY?) :: (LIST? OF ANY?) Input parameters Name Type Default first LIST? OF ANY? null second LIST? OF ANY? null Usage Examples The following creates the full union of two lists: RETURN apoc.coll.unionAll([1,2,3,4,5], [3,4,5,6,7]) AS output; Table 1. Results Output [1, 2, 3, 4, 5, 3, 4, 5, 6, 7]