> For the complete documentation index, see [llms.txt](https://docs.datasentinel.io/manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.datasentinel.io/manual/features/key-features/top-tables.md).

# Top Tables

Datasentinel facilitates hourly collection of relations, supporting a Dimension-Based Analysis approach

{% hint style="info" %}
By default, Datasentinel deactivates collection for PostgreSQL instances with over 1000 tables. You have the flexibility to control this collection behavior by adjusting the limit number.
{% endhint %}

## Table Dimensions

Finely analyze your tables among the following dimensions:

* Tuples
* Size
* Sequential scans
* Index scans
* Seq. scans rows fetched
* Index scans rows fetched
* Heap buffer blocks hit
* Heap disk blocks read
* Index disk blocks read
* Index buffer blocks hit
* Inserts
* HOT updates
* Updates
* Deletes
* Dead tuples
* Live tuples
* Tuples modified since analyze
* Frozen xid
* Age frozen xid
* TOAST buffer blocks hit
* TOAST disk blocks read
* TOAST buffer index blocks hit
* TOAST disk index blocks read

{% hint style="info" %}
Explore deeper by drilling down into a chosen table to access both historical and index statistics.
{% endhint %}

## Interactive Demo

{% @arcade/embed url="<https://app.arcade.software/share/XwprtTjtSWzXl3gk1iwY>" flowId="XwprtTjtSWzXl3gk1iwY" %}

## Index Dimensions

Finely analyze your indexes among the following dimensions

* Index scans
* Index buffer blocks hit
* Index disk blocks read
* Index scans rows fetched
* Index scans rows read
* Size
* Drill-down into a selected index to view its historical statistics.

{% hint style="info" %}
Within the dashboard, three small charts are prominently displayed, allowing you to select [Cluster or System Metrics](/manual/features/key-features/cluster-and-system-metrics.md) for correlation. Refer to [Metric Correlation](/manual/features/tips-and-hints/metric-correlation.md) section for more details
{% endhint %}

{% content-ref url="/pages/dbLGoTRlMNoFwgFYcbNF" %}
[Metric Correlation](/manual/features/tips-and-hints/metric-correlation.md)
{% endcontent-ref %}


---

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