gremlin-server

问题 I'm currently working with a graph which indicates connections between vertices. The vertices can be connected in both directions. I am interested in knowing how many vertices are connected to each other regardless both the direction of the connection or if connections exist in both directions. So for example, in the graph sketched below the total number of connected vertices would be 3 (whilst a simple edge count would tell us there are 4 Due to the directionality of the edges this isn’t the

来源： https://stackoverflow.com/questions/63002287/gremlin-cannot-go-back-to-a-previous-step-after-calling-fold-or-count

来源： https://stackoverflow.com/questions/63684159/how-to-apply-a-static-has-step-on-all-the-visited-nodes-edges-for-a-given-traver

来源： https://stackoverflow.com/questions/63684159/how-to-apply-a-static-has-step-on-all-the-visited-nodes-edges-for-a-given-traver

来源： https://stackoverflow.com/questions/63084842/gremlin-query-works-or-not-depending-on-the-context

问题 where(​ and​ (​ choose(constant(0).is(1),​ select('WorkLocation'). is(within('Not Updated')),​ select('WorkLocation')),​ ​ choose(constant(1).is(1),​ select('Status'). is(within('Red', 'Orange')),​ select('Status')),​ ​ choose(constant(0).is(1),​ select('ConfirmationDate'). is(between(637281491635663900, 637258237221895200)),​ select('ConfirmationDate'))​ )​ ) In the Above Where condition Query, I have to do a filter on three fields WorkLocation, Status, ConfirmationDate, I have used choose

问题 where(​ and​ (​ choose(constant(0).is(1),​ select('WorkLocation'). is(within('Not Updated')),​ select('WorkLocation')),​ ​ choose(constant(1).is(1),​ select('Status'). is(within('Red', 'Orange')),​ select('Status')),​ ​ choose(constant(0).is(1),​ select('ConfirmationDate'). is(between(637281491635663900, 637258237221895200)),​ select('ConfirmationDate'))​ )​ ) In the Above Where condition Query, I have to do a filter on three fields WorkLocation, Status, ConfirmationDate, I have used choose

问题 A sample vertex g.addV('a').property('vehicle','v1').property('time',1000).property(list,'vehicle','v2').property(list,'time',830) how can we map the values in property 'vehicle' to the values in property 'time'. I tired the following code g.V(1).hasKey('vehicle').map(hasKey('time')) To find path I tired following code g.V().hasLabel('a').repeat(out().simplePath()).until(hasLabel('h')).path().by(union(label(),values('vehicle','time')).fold()) can you help me please 回答1: Changing the data

问题 A sample vertex g.addV('a').property('vehicle','v1').property('time',1000).property(list,'vehicle','v2').property(list,'time',830) how can we map the values in property 'vehicle' to the values in property 'time'. I tired the following code g.V(1).hasKey('vehicle').map(hasKey('time')) To find path I tired following code g.V().hasLabel('a').repeat(out().simplePath()).until(hasLabel('h')).path().by(union(label(),values('vehicle','time')).fold()) can you help me please 回答1: Changing the data

问题 Thanks a lot for your help in advance I'm trying to setup my AWS Neptune environment by following the instruction at https://docs.aws.amazon.com/neptune/latest/userguide/get-started.html . The setup seems to be fine, and I could check the status by using the Neptune Notebook install. The status message as: { "status": "healthy", "startTime": "Tue May 12 04:24:52 UTC 2020", "dbEngineVersion": "1.0.2.2.R2", "role": "writer", "gremlin": { "version": "tinkerpop-3.4.3" }, "sparql": { "version":