示例图集
以下示例根据该图集运行：
length()
返回路径中的总边数。
| 语法 | length(<pathAlias>) |
||
| 参数 | 名称 | 类型 | 描述 |
<pathAlias> |
PATH |
路径别名引用 | |
| 返回类型 | UINT |
||
n().re()[1:3].n() as p
return p{*}, length(p) as length
结果：
| p | length |
|---|---|
 |
2 |
 |
1 |
 |
1 |
pedges()
将路径中的所有边放入一个列表。
| 语法 | pedges(<pathAlias>) |
||
| 参数 | 名称 | 类型 | 描述 |
<pathAlias> |
PATH |
路径别名引用 | |
| 返回类型 | LIST |
||
n({_id == "P1"}).re()[1:2].n() as p
return pedges(p)
结果：
| pedges(p) |
|---|
| [{"from":"P1","to":"P2","uuid":"1","from_uuid":"10448353334522806273","to_uuid":"3098478742654156802","schema":"Cites","values":{}}] |
| [{"from":"P1","to":"P2","uuid":"1","from_uuid":"10448353334522806273","to_uuid":"3098478742654156802","schema":"Cites","values":{}},{"from":"P2","to":"P3","uuid":"2","from_uuid":"3098478742654156802","to_uuid":"13618887472191635459","schema":"Cites","values":{}}] |
pnodes()
将路径中的所有点放入一个列表。
| 语法 | pnodes(<pathAlias>) |
||
| 参数 | 名称 | 类型 | 描述 |
<pathAlias> |
PATH |
路径别名引用 | |
| 返回类型 | LIST |
||
n({_id == "P1"}).re()[1:2].n() as p
return pnodes(p)
结果：
| pnodes(p) |
|---|
| [{"id":"P1","uuid":"10448353334522806273","schema":"Paper","values":{}},{"id":"P2","uuid":"3098478742654156802","schema":"Paper","values":{}}] |
| [{"id":"P1","uuid":"10448353334522806273","schema":"Paper","values":{}},{"id":"P2","uuid":"3098478742654156802","schema":"Paper","values":{}},{"id":"P3","uuid":"13618887472191635459","schema":"Paper","values":{}}] |