# Historian DB Hammering Tags

**URL:** <https://forum.inductiveautomation.com/t/historian-db-hammering-tags/91699>\
**Category:** Ignition\
**Tags:** database, ignition81, perspective\
**Created:** [June 11, 2024, 4:56pm UTC](https://forum.inductiveautomation.com/t/historian-db-hammering-tags/91699 "2024-06-11T16:56:07Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Alex\_Leech](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/alex_leech/32/39391_2.png) [@Alex\_Leech](https://forum.inductiveautomation.com/u/Alex_Leech)\
**Post date:** [June 11, 2024, 6:56pm UTC](https://forum.inductiveautomation.com/t/historian-db-hammering-tags/91699/6 "2024-06-11T18:56:57Z")

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Hiya!

Thanks @Duffanator - I've just found the below post from vision which also agrees with that logic - But its not changed so far and is still logging at once every few seconds 😕 There doesnt seem to be an 'Ignore bad quality box' either!

> [@Tag history strange behaviour](https://forum.inductiveautomation.com/t/tag-history-strange-behaviour/24963):
>
> I setup tag history for some Boolean tag with following setting: Scanclass: Evalute on change His. Deadband: 0.01 Value mode: Discrete Max Time …: Unlimited I also setup table report with sample Size: Onchange. So it should only show me the new row if one of my tag value change compare to previous one. But in action query return many row with same value for all tags. For clarity I attach my setting snapshot. Why there is so many log when there is no vlaue change in tags value? …

@bschroeder see below 🙂

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/6/d64ea19de48a8f47ace24b75d70453c35b50551e.png)

Thanks both!

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