Installing autovacuum monitoring and diagnostic tools in RDS for PostgreSQL

The postgres_get_av_diag() function is currently available in the following RDS for PostgreSQL versions:

In order to use postgres_get_av_diag(), create the rds_tools extension.

postgres=> CREATE EXTENSION rds_tools ;
CREATE EXTENSION

Verify that the extension is installed.

postgres=> \dx rds_tools
             List of installed extensions
   Name    | Version |  Schema   |                    Description
 ----------+---------+-----------+----------------------------------------------------------
 rds_tools |   1.8   | rds_tools | miscellaneous administrative functions for RDS PostgreSQL
 1 row

Verify that the function is created.

postgres=> SELECT
    proname function_name,
    pronamespace::regnamespace function_schema,
    proowner::regrole function_owner
FROM
    pg_proc
WHERE
    proname = 'postgres_get_av_diag';
    function_name     | function_schema | function_owner
----------------------+-----------------+----------------
 postgres_get_av_diag | rds_tools       | rds_superuser
(1 row)