[TINKERPOP-2957] mergeV with sideEffect not correctly updating properties

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.6.4
• Fix Version/s: 3.7.0
• Component/s: process
• Assignee: Stephen Mallette
• Reporter: Kelvin Lawrence
• Created: 02/Jun/23 19:25
• Updated: 18/Jul/23 11:15
• Resolved: 18/Jul/23 11:15

Description

A Gremlin user let me know about the following issue. If the query below is run twice, the name parameter on the 4567 vertex does not get updated. The name on the 1234 vertex does get updated. The query is written this way as not all databases support single cardinality as the default. The issue has been reproduced using both TinkerGraph and Amazon Neptune.

g.mergeV([(T.id): 'test-test-1234']).
  option(onCreate, [(T.label): 'someLabel', 'name': 'name1']).
  option(onMatch, sideEffect(property(single,"name","name2")).constant([:])).
 mergeV([(T.id): 'test-test-4567']).
  option(onCreate, [(T.label): 'someLabel', 'name': 'name1']).
  option(onMatch, sideEffect(property(single,"name","name2")).constant([:]))

Issue Links

• links to: DISCUSS