PostgreSQL extensions provide a way to extend the functionality of a database by bundling SQL objects into a package and using them as a unit. YugabyteDB supports a number of PostgreSQL extensions.
To list the currently installed extensions in the connected database, you can query the pg_catalog.pg_extension system table.
Example:
yugabyte=# SELECT * FROM pg_catalog.pg_extension ORDER BY 1;
extname | extowner | extnamespace | extrelocatable | extversion | extconfig | extcondition
--------------------+----------+--------------+----------------+------------+---------------+--------------
pg_hint_plan | 13296 | 16854 | f | 1.3.7 | {16858,16856} | {"",""}
pg_stat_statements | 10 | 11 | t | 1.6 | |
pgcrypto | 13296 | 2200 | t | 1.3 | |
plpgsql | 10 | 11 | f | 1.0 | |
uuid-ossp | 13296 | 2200 | t | 1.1 | |
(5 rows)
Have Fun!