May 2019
Intermediate to advanced
600 pages
20h 46m
English
The following are the steps to manage the extensions:
postgres=# \x onExpanded display is on.postgres=# SELECT *postgres-# FROM pg_available_extensionspostgres-# ORDER BY name;-[ RECORD 1 ]-----+--------------------------------------------------name | adminpackdefault_version | 2.0installed_version |comment | administrative functions for PostgreSQL-[ RECORD 2 ]-----+--------------------------------------------------name | pg_stat statementsdefault_version | 1.6installed_version |comment | track execution statistics of all SQL statements executed(...)
In particular, if the dblink extension is installed, then we see a record such as this:
-[ RECORD 10 ]----+-------------------------------------------------- ...
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