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add annotation #2411

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merged 3 commits into from
Jan 2, 2024
Merged

add annotation #2411

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e1ed431
add annotation
MuYiYong Dec 29, 2023
cd4cc54
modify format
QingZ11 Dec 30, 2023
3f59fb6
Update 2.match.md
abby-cyber Jan 2, 2024
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5 changes: 4 additions & 1 deletion docs-2.0-zh/3.ngql-guide/7.general-query-statements/2.match.md
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Expand Up @@ -111,6 +111,7 @@ nebula> MATCH (v:player{name:"Tim Duncan"}) \
使用`WHERE`子句也可以实现相同的操作：

```ngql
# 查找类型为 player，名字为 Tim Duncan 的点。
nebula> MATCH (v:player) \
WHERE v.player.name == "Tim Duncan" \
RETURN v;
Expand Down Expand Up @@ -157,6 +158,7 @@ nebula> WITH ['Tim Duncan', 'Yao Ming'] AS names \
用户可以使用点 ID 去匹配点。`id()`函数可以检索点的 ID。

```ngql
# 查找 ID 为 “player101” 的点。（注：ID 全局唯一）。
nebula> MATCH (v) \
WHERE id(v) == 'player101' \
RETURN v;
Expand All @@ -170,6 +172,7 @@ nebula> MATCH (v) \
要匹配多个点的 ID，可以用`WHERE id(v) IN [vid_list]`或者`WHERE id(v) IN {vid_list}`。

```ngql
# 查找与 `Tim Duncan` 直接相连的点，并且这些点的 ID 必须是 `player101` 或 `player102`。
nebula> MATCH (v:player { name: 'Tim Duncan' })--(v2) \
WHERE id(v2) IN ["player101", "player102"] \
RETURN v2;
Expand Down Expand Up @@ -215,7 +218,7 @@ nebula> MATCH (v:player{name:"Tim Duncan"})--(v2:player) \
用户可以在`--`符号上增加`<`或`>`符号指定边的方向。

```ngql
# -->表示边从 v 开始，指向 v2。对于点 v 来说是出边，对于点 v2 来说是入边。
# `-->` 表示边从 v 开始，指向 v2。对于点 v 来说是出边，对于点 v2 来说是入边。
nebula> MATCH (v:player{name:"Tim Duncan"})-->(v2:player) \
RETURN v2.player.name AS Name;
+-----------------+
Expand Down