(originalDataSource) WHERE EXISTS((lp)-[:CREATED_FROM]->(originalDataSource)) AND ( ( rel.participated_as = "track_writer" AND originalDataSource:TrackWriter ) OR ( rel.participated_as <> "track_writer" AND originalDataSource:TrackArtist AND originalDataSource.type = rel.participated_as ) ) WITH rel, min(originalDataSource.id) AS orderInRole, CASE rel.participated_as WHEN "performer" THEN 1 WHEN "featuring" THEN 2 WHEN "remixer" THEN 3 WHEN "producer" THEN 4 WHEN "track_writer" THEN 5 ELSE 6 END AS roleValue ORDER BY roleValue, orderInRole WITH collect(rel) AS sequence UNWIND range(0, size(sequence)-1) AS sequenceNumber WITH sequence[sequenceNumber] AS rel, sequenceNumber SET rel.sequenceNumber = sequenceNumber ', {batchSize: 30, iterateList: false, parallel: true, concurrency: 5} ) YIELD total RETURN total ]]>