Extending PostgreSQL Functionality
Cloud automatically installs the following Postgres extensions in your Postgres database:
| Extension | Description | 
|---|---|
| pgvector (opens in a new tab) | Provides vector similarity search capabilities. | 
| PostGIS (opens in a new tab) | Provides support for storing, indexing, and querying geospatial and geometric data. | 
Before using an extension, you must create the extension (opens in a new tab) in each database in which it will be used. Invoke the following command on the psql command line:
CREATE EXTENSION extension_name;
For example, to create the pgvector extension, use the command:
CREATE EXTENSION vector;
For detailed information about using each extension, visit the project's site links provided in the table above.
To review a list of the installed extensions, you can use the psql command line client to display the shared_preload_libraries parameter setting. To review a list of installed extensions, use the SHOW shared_preload_libraries; command:
accts=# SHOW shared_preload_libraries;
shared_preload_libraries
-------------------------------------------------------------------------------
pg_stat_statements, pg_readonly, pg_failover_slots, spock, vector, postgis-3
(1 row)Installed extensions are listed in the query result set.