正在放弃边缘财产预期放弃其边缘？

Question

随着DSE v5.0.3，我遇到了一个情况，即边缘属性的下降也下降了。

两者的gremlin控制台示例使用以下模式配置的：

gremlin> system.graph('example').create() 
==>null 
gremlin> :remote config alias g example.g 
==>g=example.g 
gremlin> schema.propertyKey('notes').Text().single().create() 
==>null 
gremlin> schema.vertexLabel('person').create() 
==>null 
gremlin> schema.edgeLabel('knows').properties('notes').create() 
==>null 
gremlin> schema.edgeLabel('knows').connection('person', 'person').add() 
==>null 

在以下示例中，滴在边缘本身的边缘属性的结果被丢弃：

gremlin> person1 = g.addV('person').next() 
==>v[{~label=person, community_id=1566048896, member_id=0}] 
gremlin> person2 = g.addV('person').next() 
==>v[{~label=person, community_id=1062113536, member_id=0}] 
gremlin> knows = g.V(person1).addE('knows').to(V(person2)).property('notes', 'online').next() 
==>e[{~type=knows, out_vertex={~label=person, community_id=1566048896, member_id=0}, in_vertex={~label=person, community_id=1062113536, member_id=0}, local_id=4cd8f8e2-a6b8-11e6-aa90-df2b21a156a2}][{~label=person, community_id=1566048896, member_id=0}-knows->{~label=person, community_id=1062113536, member_id=0}] 
gremlin> g.E(knows) 
==>e[{~type=knows, out_vertex={~label=person, community_id=1566048896, member_id=0}, in_vertex={~label=person, community_id=1062113536, member_id=0}, local_id=4cd8f8e2-a6b8-11e6-aa90-df2b21a156a2}][{~label=person, community_id=1566048896, member_id=0}-knows->{~label=person, community_id=1062113536, member_id=0}] 
gremlin> g.E(knows).properties('notes') 
==>p[notes->online] 
gremlin> g.E(knows).properties('notes').drop() 
gremlin> g.E(knows) 
gremlin> 

下一个例子创建相同的数据集，但不是像步骤addE那样设置'notes'属性，而是在单独的遍历中创建属性。与上面的示例不同，删除'notes'属性会丢弃属性，同时保持边缘不变。

gremlin> person1 = g.addV('person').next() 
==>v[{~label=person, community_id=1437137920, member_id=0}] 
gremlin> person2 = g.addV('person').next() 
==>v[{~label=person, community_id=1317720192, member_id=0}] 
gremlin> knows = g.V(person1).addE('knows').to(V(person2)).next() 
==>e[{~type=knows, out_vertex={~label=person, community_id=1437137920, member_id=0}, in_vertex={~label=person, community_id=1317720192, member_id=0}, local_id=847ebaf0-a6b8-11e6-aa90-df2b21a156a2}][{~label=person, community_id=1437137920, member_id=0}-knows->{~label=person, community_id=1317720192, member_id=0}] 
gremlin> g.E(knows).property('notes', 'online') 
==>e[{~type=knows, out_vertex={~label=person, community_id=1437137920, member_id=0}, in_vertex={~label=person, community_id=1317720192, member_id=0}, local_id=847ebaf0-a6b8-11e6-aa90-df2b21a156a2}][{~label=person, community_id=1437137920, member_id=0}-knows->{~label=person, community_id=1317720192, member_id=0}] 
gremlin> g.E(knows).properties() 
==>p[notes->online] 
gremlin> g.E(knows).properties('notes').drop() 
gremlin> g.E(knows) 
==>e[{~type=knows, out_vertex={~label=person, community_id=1437137920, member_id=0}, in_vertex={~label=person, community_id=1317720192, member_id=0}, local_id=847ebaf0-a6b8-11e6-aa90-df2b21a156a2}][{~label=person, community_id=1437137920, member_id=0}-knows->{~label=person, community_id=1317720192, member_id=0}] 
gremlin> g.E(knows).properties() 
gremlin> 

Answer 1

感谢您的反馈Leifur。这似乎是一个错误，我们已经提交了内部JIRA，工程团队正在调查。