Source: https://dev-docs.yueshu.com.cn/v5.3.2/database-gql-reference/data-admin/show/export-schemas/ Documentation version: v5.3.2 # EXPORT SCHEMA `EXPORT SCHEMA`命令返回当前服务组中所有 Schema 的资源对象以及定义资源对象的语句。 `EXPORT SCHEMA `命令返回特定 Schema 的资源对象以及定义资源对象的语句。 下表展示了上述命令返回的信息： | 列 | 描述 | `entity` | 构成 Schema 的资源对象，可以是图、图类型或索引。 | `statement` | 定义资源对象的语句。 ## 前提条件 若要执行`EXPORT SCHEMA`命令，您必须是拥有角色`ADMIN`的用户。 ## 语法 语法图源码 export_schemas_command export_schema_command ```` export_schemas_command ::= 'EXPORT' 'SCHEMA' export_schema_command ::= 'EXPORT' 'SCHEMA' schema_reference ```` ## 参数 ### `schema_reference` 所引用的 Schema 路径。此处即待导出 Schema 的路径。 路径区分大小写，必须与现有的 Schema 路径匹配。绝对路径或相对路径均可在命令中使用。 ## 示例 ### 导出所有 SCHEMA ```` EXPORT SCHEMA ```` 返回： ```` +-----------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | entity | statement | +-----------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | GraphType | CREATE GRAPH TYPE IF NOT EXISTS `movie_type` AS {\n NODE TYPE `Actor` (LABEL `Person`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, `birthDate` DATE DEFAULT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `Director` (LABEL `Person`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, `birthDate` DATE DEFAULT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `User` (LABEL `Person`{`id` INT64 NOT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `Movie` (LABEL `Movie`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `Genre` (LABEL `Genre`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, PRIMARY KEY (`id`)}),\n EDGE TYPE `Act` (`Actor`)-[LABEL `Act`{}]->(`Movie`),\n EDGE TYPE `Direct` (`Director`)-[LABEL `Direct`{}]->(`Movie`),\n EDGE TYPE `Watch` (`User`)-[LABEL `Watch`{`rate` FLOAT DEFAULT NULL}]->(`Movie`),\n EDGE TYPE `WithGenre` (`Movie`)-[LABEL `WithGenre`{}]->(`Genre`)\n} | | Graph | CREATE GRAPH IF NOT EXISTS `movie` TYPED `movie_type` | | NodeIndex | CREATE INDEX IF NOT EXISTS `idx_actor_age` FOR `movie` ON NODE `Actor`(birthDate) | | GraphType | CREATE GRAPH TYPE IF NOT EXISTS `export_type` AS {\n NODE TYPE `player` (LABEL `player`{`id` INT64 NOT NULL, `age` INT64 DEFAULT NULL, `v1` VECTOR<3, FLOAT> DEFAULT NULL, PRIMARY KEY (`id`)}),\n EDGE TYPE `follow` (`player`)-[LABEL `follow`{`s1` STRING DEFAULT NULL, `v2` VECTOR<3, FLOAT> DEFAULT NULL}]->(`player`)\n} | | Graph | CREATE GRAPH IF NOT EXISTS `export_test` TYPED `export_type` | | NodeIndex | CREATE INDEX IF NOT EXISTS `i_player_age` FOR `export_test` ON NODE `player`(age) | | EdgeIndex | CREATE INDEX IF NOT EXISTS `i_follow_s1` ON EDGE `follow`(s1) FOR `export_test` | | NodeVectorIndex | CREATE VECTOR INDEX IF NOT EXISTS `i_ann_player_v1` FOR `export_test` ON NODE `player`::v1 OPTIONS {dim: 3, type: IVF, metric: L2} | | EdgeVectorIndex | CREATE VECTOR INDEX IF NOT EXISTS `i_ann_follow_v2` FOR `export_test` ON EDGE `follow`::v2 OPTIONS {dim: 3, type: IVF, metric: L2} | +-----------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ ```` ### 导出特定 SCHEMA ```` EXPORT SCHEMA /default_schema ```` 返回： ```` +-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | entity | statement | +-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | GraphType | CREATE GRAPH TYPE IF NOT EXISTS `movie_type` AS {\n NODE TYPE `Actor` (LABEL `Person`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, `birthDate` DATE DEFAULT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `Director` (LABEL `Person`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, `birthDate` DATE DEFAULT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `User` (LABEL `Person`{`id` INT64 NOT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `Movie` (LABEL `Movie`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, PRIMARY KEY (`id`)}),\n NODE TYPE `Genre` (LABEL `Genre`{`id` INT64 NOT NULL, `name` STRING DEFAULT NULL, PRIMARY KEY (`id`)}),\n EDGE TYPE `Act` (`Actor`)-[LABEL `Act`{}]->(`Movie`),\n EDGE TYPE `Direct` (`Director`)-[LABEL `Direct`{}]->(`Movie`),\n EDGE TYPE `Watch` (`User`)-[LABEL `Watch`{`rate` FLOAT DEFAULT NULL}]->(`Movie`),\n EDGE TYPE `WithGenre` (`Movie`)-[LABEL `WithGenre`{}]->(`Genre`)\n} | | Graph | CREATE GRAPH IF NOT EXISTS `movie` TYPED `movie_type` | | NodeIndex | CREATE INDEX IF NOT EXISTS `idx_actor_age` FOR `movie` ON NODE `Actor`(birthDate) | +-----------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ ````