zhengyingying commented on issue #2188:
URL:
https://github.com/apache/incubator-hugegraph/issues/2188#issuecomment-1511390974
@javeme Hi, the graph data is as following.
```
connection.getHugespecial().schema().propertyKey("age").asInt().ifNotExist().create();
connection.getHugespecial().schema().propertyKey("year").asInt().ifNotExist().create();
// vertex
connection.getHugespecial().schema().vertexLabel("person").properties("age").nullableKeys("age").create();
connection.getHugespecial().schema().indexLabel("personbyage").onV("person").by("age").shard().ifNotExist().create();
// edge
connection.getHugespecial().schema().edgeLabel("knows").sourceLabel("person").targetLabel("person").properties("year").ifNotExist().create();
connection.getHugespecial().schema().edgeLabel("teach").sourceLabel("person").targetLabel("person").properties("year").ifNotExist().create();
connection.getHugespecial().schema().indexLabel("knowsbyperson").onE("knows").by("year").shard().ifNotExist().create();
connection.getHugespecial().schema().indexLabel("teachbyperson").onE("teach").by("year").shard().ifNotExist().create();
GraphManager graph = connection.getHugespecial().graph();
/** create graph data */
Vertex person1 = new Vertex("person").property("age", 12);
Vertex person2 = new Vertex("person").property("age", 23);
Vertex person3 = new Vertex("person").property("age", 24);
graph.addVertices(Arrays.asList(person1, person2, person3));
Edge edge1 = new
Edge("knows").source(person1).target(person2).property("year", 3);
Edge edge2 = new
Edge("teach").source(person1).target(person3).property("year", 2);
graph.addEdges(Arrays.asList(edge1, edge2));
```
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