Apache TinkerPop•14mo ago

Filter out empty results

gremlin> g.V().hasLabel('metadata').valueMap() ==>{} ==>{} ==>{oncall_roster=[oncall_schedule]} How to skip or ignore the {} empty results in query

1 Reply

spmallette•14mo ago

using this sample data:

gremlin> g = TinkerGraph.open().traversal()
==>graphtraversalsource[tinkergraph[vertices:0 edges:0], standard]
gremlin> g.addV().addV().property('name','bob').iterate()
gremlin> g.V().valueMap()
==>[]
==>[name:[bob]]

gremlin> g = TinkerGraph.open().traversal()
==>graphtraversalsource[tinkergraph[vertices:0 edges:0], standard]
gremlin> g.addV().addV().property('name','bob').iterate()
gremlin> g.V().valueMap()
==>[]
==>[name:[bob]]

you could do this:

gremlin> g.V().filter(properties()).valueMap()
==>[name:[bob]]

gremlin> g.V().filter(properties()).valueMap()
==>[name:[bob]]

or you might do it as a post filter

gremlin> g.V().valueMap().filter(unfold())
==>[name:[bob]]

gremlin> g.V().valueMap().filter(unfold())
==>[name:[bob]]

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Filter out empty results