GitHub user dosubot[bot] added a comment to the discussion: 关于电网拓扑数据导入
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你的配置还有一个关键点没有改对,导致边还是全部插入失败:
你的 struct.json 里 edges 的 field_mapping 现在还是:
```json
"field_mapping": { "from": "id", "to": "id" }
```
这会把 edge_connected_to.csv 的 id 列当作边属性导入,但 schema.groovy 的 edgeLabel 没有声明 id
属性,所以报 “Invalid property 'id' for edge label” 或 “主键字段 [id] 为空” 的报错。
**正确写法应该是:**
```json
"field_mapping": { "from": "from", "to": "to" }
```
这样 loader 只会用 from/to 字段去查找顶点,不会把 id 字段当作边属性导入。
你需要把 struct.json 里所有 edges 的 field_mapping 全部改成上面这样(只写 from/to),不要写
id,其他配置不用动。edge_connected_to.csv 的 id 列可以保留但 loader 不会导入它为边属性。
**只要 field_mapping 改对,边就能正常导入且无报错,所有关系都能导入。**
详细机制见[官方FAQ](https://github.com/apache/incubator-hugegraph-doc/blob/master/content/en/docs/guides/faq.md)。
如果还有报错,请贴出 power_edges_to.csv 的 header 和前几行原始数据,以及 struct.json 某个 edges
配置的完整内容,我可以帮你定位具体是哪一行或哪一列有问题。
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