I am trying to profile the following query on the neo4j server console (community edition, version 1.9.2):
PROFILE START ungrouped=node(1)
CREATE (grouped{__type__:'my.package.Grouped'})<-[:HAS_NEXT]-(ungrouped)
MATCH (ungrouped)-[:LEAF]->(leaf)
WITH leaf.`custom-GROUP` as groupValue, grouped, leaf
CREATE UNIQUE (grouped)-[:GROUP]->({__type__:'my.package.Group',groupKey:'GROUP',groupValue:groupValue,groupOrigin:ID(ungrouped)})-[:LEAF]->(leaf)
RETURN DISTINCT grouped;
When I run the above query, I get the message
==> I need a transaction!
Ok, so I created one with
BEGIN TRANSACTION
==> Transaction started
Afterwards I run the same query again. But unfortunately I get the same message again:
==> I need a transaction!
But there definitely is a transaction. When I type
ROLLBACK
the transaction is successfully rolled back:
==> Transaction rolled back
Am I doing something wrong? Does profiling not work for such kind of a query by design? Or is this simply a bug in neo4j?