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Update 4.schema.md #2384

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Dec 12, 2022
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Update 4.schema.md #2384

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32c79b4
Update 4.schema.md
abby-cyber Dec 12, 2022
087ba6e
Update docs-2.0/3.ngql-guide/6.functions-and-expressions/4.schema.md
abby-cyber Dec 12, 2022
dc05efa
Update docs-2.0/3.ngql-guide/6.functions-and-expressions/4.schema.md
abby-cyber Dec 12, 2022
52fe591
Update 4.schema.md
abby-cyber Dec 12, 2022
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8 changes: 8 additions & 0 deletions docs-2.0/3.ngql-guide/6.functions-and-expressions/4.schema.md
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Expand Up @@ -119,6 +119,10 @@ nebula> GO FROM "player100" OVER follow \
+-------------+-------------+
```

!!! note

src(edge) 和 [properties(`$^`)](../5.operators/5.property-reference.md) 查找起始点的语义不同。src(edge) 始终表示图数据库中边的起始点 ID，而 properties(`$^`) 表示探索开始时的点数据，例如示例中`GO FROM "player100"`中`player100`这个点的数据。

### dst(edge)

dst(edge) 返回边的目的点 ID。
Expand All @@ -140,6 +144,10 @@ nebula> GO FROM "player100" OVER follow \
+-------------+-------------+
```

!!! note

dst(edge) 始终表示图数据库中边的目的点 ID。

### rank(edge)

rank(edge) 返回边的 rank。
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