SQLITE doesnt cascade delte when chat is deleted. PostgreSQL does. These changes ensure it will also cascade delete on SQLite.
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## 📋 Pull Request Information
**Original PR:** https://github.com/open-webui/open-webui/pull/21362
**Author:** [@Classic298](https://github.com/Classic298)
**Created:** 2/13/2026
**Status:** ✅ Merged
**Merged:** 2/13/2026
**Merged by:** [@tjbck](https://github.com/tjbck)
**Base:** `dev` ← **Head:** `cascade-delete-chat-messages`
---
### 📝 Commits (1)
- [`78cd3f3`](https://github.com/open-webui/open-webui/commit/78cd3f3660b66efebe71dcfa6b896ec268d7e42d) enh
### 📊 Changes
**1 file changed** (+13 additions, -1 deletions)
<details>
<summary>View changed files</summary>
📝 `backend/open_webui/models/chats.py` (+13 -1)
</details>
### 📄 Description
SQLITE doesnt cascade delte when chat is deleted. PostgreSQL does. These changes ensure it will also cascade delete on SQLite.
### Contributor License Agreement
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By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](https://github.com/open-webui/open-webui/blob/main/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms.
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---
<sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
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📋 Pull Request Information
Original PR: https://github.com/open-webui/open-webui/pull/21362
Author: @Classic298
Created: 2/13/2026
Status: ✅ Merged
Merged: 2/13/2026
Merged by: @tjbck
Base:
dev← Head:cascade-delete-chat-messages📝 Commits (1)
78cd3f3enh📊 Changes
1 file changed (+13 additions, -1 deletions)
View changed files
📝
backend/open_webui/models/chats.py(+13 -1)📄 Description
SQLITE doesnt cascade delte when chat is deleted. PostgreSQL does. These changes ensure it will also cascade delete on SQLite.
Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.