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Update 4.schema.md #2359

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Nov 28, 2022
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Update 4.schema.md #2359

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4 changes: 2 additions & 2 deletions docs-2.0/3.ngql-guide/6.functions-and-expressions/4.schema.md
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Expand Up @@ -38,8 +38,8 @@ Nebula Graph 支持以下 Schema 函数。
|string type(<edge\>) | 返回边的 Edge type。|
|src(<edge\>)|返回边的起始点 ID。数据类型和点 ID 的类型保持一致。|
|dst(<edge\>)|返回边的目的点 ID。数据类型和点 ID 的类型保持一致。|
|vertex startNode(<path\>) | 获取一条边或一条路径并返回它的起始点 ID。|
|string endNode(<path\>) | 获取一条边或一条路径并返回它的目的点 ID。|
|vertex startNode(<path\>) | 获取一条路径并返回它的起始点 ID。|
|string endNode(<path\>) | 获取一条路径并返回它的目的点 ID。|
|int rank(<edge\>) | 返回边的 rank。|

## 示例
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