Re: Few extensions, pg_stat_statements not available

Hi community

I've been investigating about postgresql monitoring tools and I've installed a couple of extensions: system_stats and pg_stat_monitor.Then I tried to enable pg_stat_statements and postgresql could no restart because lack of extension file

FATAL:  could not access file "pg_stat_statements": No such file or directory

I don't know why there are so few extensions available

postgres=# select * from pg_available_extensions;
      name       | default_version | installed_version | comment                
-----------------+-----------------+-------------------+-------------------------------------------------------------------------
 plpgsql         | 1.0             | 1.0               | PL/pgSQL procedural language
 system_stats    | 3.0             | 3.0               | EnterpriseDB system statistics for PostgreSQL
 repmgr          | 5.5             |                   | Replication manager for PostgreSQL
 pg_stat_monitor | 2.1             |                   | The pg_stat_monitor is a PostgreSQL Query Performance Monitoring tool.....
(4 rows)


[postgres@pgsql01 data]$ ls -l /usr/pgsql-17/share/extension/
total 256
-rw-r--r--. 1 root root  9636 Feb 24 08:25 pg_stat_monitor--1.0--2.0.sql
-rw-r--r--. 1 root root 12017 Feb 24 08:25 pg_stat_monitor--2.0--2.1.sql
-rw-r--r--. 1 root root 11092 Feb 24 08:25 pg_stat_monitor--2.0.sql
-

-rw-r--r--. 1 root root  6113 Mar 20 16:56 system_stats--3.0.sql
-rw-r--r--. 1 root root   167 Mar 20 16:56 system_stats.control
-rw-r--r--. 1 root root   373 Mar 20 16:56 uninstall_system_stats.sql
[postgres@pgsql01 data]$

I would appreciate any tips or guidance