# Extensions

{% hint style="info" %}
Prior to configuring a PostgreSQL connection to Datasentinel, it is imperative to ensure the installation of the **pg\_stat\_statements** extension.
{% endhint %}

{% content-ref url="extensions/pg\_stat\_statements" %}
[pg\_stat\_statements](https://docs.datasentinel.io/manual/getting-started/postgresql-clusters/extensions/pg_stat_statements)
{% endcontent-ref %}

{% hint style="info" %}
The remaining extensions are optional
{% endhint %}

<table data-view="cards"><thead><tr><th data-type="content-ref"></th></tr></thead><tbody><tr><td><a href="extensions/pg_store_plans">pg_store_plans</a></td></tr><tr><td><a href="extensions/system_stats">system_stats</a></td></tr><tr><td><a href="extensions/pg_buffercache">pg_buffercache</a></td></tr></tbody></table>