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add-STEP-in-syntax #2429

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Dec 30, 2022
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add-STEP-in-syntax #2429

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6add53f
add-STEP-in-syntax
abby-cyber Dec 30, 2022
027a29f
Update 6.cheatsheet-for-ngql-command.md
abby-cyber Dec 30, 2022
6714c55
Update source_ngql_for_quick_start.md
abby-cyber Dec 30, 2022
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2 changes: 1 addition & 1 deletion docs-2.0/3.ngql-guide/16.subgraph-and-path/1.get-subgraph.md
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Expand Up @@ -5,7 +5,7 @@
## 语法

```ngql
GET SUBGRAPH [WITH PROP] [<step_count> STEPS] FROM {<vid>, <vid>...}
GET SUBGRAPH [WITH PROP] [<step_count> {STEP|STEPS}] FROM {<vid>, <vid>...}
[{IN | OUT | BOTH} <edge_type>, <edge_type>...]
[WHERE <expression> [AND <expression> ...]]
YIELD [VERTICES AS <vertex_alias>] [, EDGES AS <edge_alias>];
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2 changes: 1 addition & 1 deletion docs-2.0/3.ngql-guide/16.subgraph-and-path/2.find-path.md
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Expand Up @@ -11,7 +11,7 @@
```ngql
FIND { SHORTEST | ALL | NOLOOP } PATH [WITH PROP] FROM <vertex_id_list> TO <vertex_id_list>
OVER <edge_type_list> [REVERSELY | BIDIRECT]
[<WHERE clause>] [UPTO <N> STEPS]
[<WHERE clause>] [UPTO <N> {STEP|STEPS}]
YIELD path as <alias>
[| ORDER BY $-.path] [| LIMIT <M>];

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6 changes: 3 additions & 3 deletions docs-2.0/3.ngql-guide/7.general-query-statements/3.go.md
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Expand Up @@ -9,7 +9,7 @@
## 语法

```ngql
GO [[<M> TO] <N> STEPS ] FROM <vertex_list>
GO [[<M> TO] <N> {STEP|STEPS} ] FROM <vertex_list>
OVER <edge_type_list> [{REVERSELY | BIDIRECT}]
[ WHERE <conditions> ]
YIELD [DISTINCT] <return_list>
Expand All @@ -29,9 +29,9 @@ YIELD [DISTINCT] <return_list>
<col_name> [AS <col_alias>] [, <col_name> [AS <col_alias>] ...]
```

- `<N> STEPS`：指定跳数。如果没有指定跳数，默认值`N`为`1`。如果`N`为`0`，NebulaGraph 不会检索任何边。
- `<N> {STEP|STEPS}`：指定跳数。如果没有指定跳数，默认值`N`为`1`。如果`N`为`0`，NebulaGraph 不会检索任何边。

- `M TO N STEPS`：遍历`M~N`跳的边。如果`M`为`0`，输出结果和`M`为`1`相同，即`GO 0 TO 2`和`GO 1 TO 2`是相同的。
- `M TO N {STEP|STEPS}`：遍历`M~N`跳的边。如果`M`为`0`，输出结果和`M`为`1`相同，即`GO 0 TO 2`和`GO 1 TO 2`是相同的。

- `<vertex_list>`：用逗号分隔的点 ID 列表，或特殊的引用符`$-.id`。详情参见[管道符](../5.operators/4.pipe.md)。

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