# Removing Historian Tables

**URL:** <https://forum.inductiveautomation.com/t/removing-historian-tables/82483>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [November 29, 2023, 3:41pm UTC](https://forum.inductiveautomation.com/t/removing-historian-tables/82483 "2023-11-29T15:41:35Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![Felipe\_CRM](https://avatars.discourse-cdn.com/v4/letter/f/dfb087/32.png) [@Felipe\_CRM](https://forum.inductiveautomation.com/u/Felipe_CRM)\
**Post date:** [November 29, 2023, 4:50pm UTC](https://forum.inductiveautomation.com/t/removing-historian-tables/82483/4 "2023-11-29T16:50:23Z")

</div>

> [@Transistor](#):
>
> (I can't remember when this occurs)

Looks like it happens every 10 minutes but I wasn't able to find if it's on a fixed schedule or just starting from when pruning is enabled.

> [@When is data pruning triggered?](https://forum.inductiveautomation.com/t/when-is-data-pruning-triggered/11302):
>
> I enabled data pruning and set the Prune Age to 1 Month and saved the changes. Partitioning is enabled with a Partition length of 1 Month. At first the data (table partition) was not pruned, but eventually it was. I believe it was after at least 15 minutes or so after enabling pruninig. I did not record the time when I enabled pruning. This is acceptable behavior, but it still left me wondering what triggers the pruning so that I can know when to expect the data to be deleted? Is it configu…

---

_[View the full topic](https://forum.inductiveautomation.com/t/removing-historian-tables/82483)._