跳转至

SHOW CREATE INDEX

SHOW CREATE INDEX展示创建 Tag 或者 Edge type 时使用的 nGQL 语句,其中包含索引的详细信息,例如其关联的属性。

语法

SHOW CREATE {TAG | EDGE} INDEX <index_name>;

示例

用户可以先运行SHOW TAG INDEXES查看有哪些 Tag 索引,然后用SHOW CREATE TAG INDEX查看指定索引的创建信息。

nebula> SHOW TAG INDEXES;
+------------------+----------+----------+
| Index Name       | By Tag   | Columns  |
+------------------+----------+----------+
| "player_index_0" | "player" | []       |
| "player_index_1" | "player" | ["name"] |
+------------------+----------+----------+

nebula> SHOW CREATE TAG INDEX player_index_1;
+------------------+--------------------------------------------------+
| Tag Index Name   | Create Tag Index                                 |
+------------------+--------------------------------------------------+
| "player_index_1" | "CREATE TAG INDEX `player_index_1` ON `player` ( |
|                  |  `name`(20)                                      |
|                  | )"                                               |
+------------------+--------------------------------------------------+

Edge type 索引可以用类似的方法查询:

nebula> SHOW EDGE INDEXES;
+----------------+----------+---------+
| Index Name     | By Edge  | Columns |
+----------------+----------+---------+
| "follow_index" | "follow" | []      |
+----------------+----------+---------+

nebula> SHOW CREATE EDGE INDEX follow_index;
+-----------------+-------------------------------------------------+
| Edge Index Name | Create Edge Index                               |
+-----------------+-------------------------------------------------+
| "follow_index"  | "CREATE EDGE INDEX `follow_index` ON `follow` ( |
|                 | )"                                              |
+-----------------+-------------------------------------------------+

历史版本兼容性

Nebula Graph 2.0.1 中, SHOW TAG/EDGE INDEXES 语句仅返回 Names


最后更新: November 24, 2021
Back to top