ELEMENTS

ELEMENTS(path) produces [node, edge, node, ...] in traversal order. It retains graph identity and the node/edge kind of each reference.

MATCH p = (a {name: 'Alice'})-[:Knows]->(b)
FOR element IN ELEMENTS(p) WITH ORDINALITY position
RETURN position, ELEMENT_ID(element) AS id ORDER BY position;

This produces three rows. The references can be returned, counted and used for supported property and label lookups. Ordinary scalar/list values are not paths and are rejected. FOR explains null-list and ordinal behavior.