Postgresql数据库Extension管理
注意：在集群的一个数据库中安装扩展，在集群的另一个数据库要使用的话，仍需安装
1. 查看当前已安装Extension‘‘postgres=# \dx
List of installed extensions Name | Version | Schema | Description ---------+---------+------------+------------------------------ plpgsql | 1.0 | pg_catalog | PL/pgsql procedural language (1 row)
2. 查看当前服务器可用的Extension扩展列表
postgres=# select name from pg_available_extensions; name -------------------- adminpack seg autoinc dict_xsyn pg_prewarm ltree ltree_plpython2u bloom pg_stat_statements ...
3. 安装可用的Extension扩展,查看验证
postgres=# create extension pg_stat_statements ; CREATE EXTENSION postgres=# \dx List of installed extensions Name | Version | Schema | Descr iption --------------------+---------+------------+----------------------------- ------------------------------ pg_stat_statements | 1.5 | public | track execution statistics o f all sql statements executed plpgsql | 1.0 | pg_catalog | PL/pgsql procedural language (2 rows)
4. 删除Extension扩展，查看验证
postgres=# drop extension pg_stat_statements ; DROP EXTENSION postgres=# \x Expanded display is on. postgres=# \dx List of installed extensions -[ RECORD 1 ]----------------------------- Name | plpgsql Version | 1.0 Schema | pg_catalog Description | PL/pgsql procedural language
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