[PR #4046] [MERGED] perf: optimize query for chat list #44438

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GiteaMirror · 2026-04-29T18:33:06-05:00

GiteaMirror commented

2026-04-29 18:33:06 -05:00

📋 Pull Request Information

Original PR: https://github.com/open-webui/open-webui/pull/4046
Author: @thearyadev
Created: 7/22/2024
Status: ✅ Merged
Merged: 7/24/2024
Merged by: @tjbck

Base: dev ← Head: chat-list-optimization

📝 Commits (3)

2b78e61 add func to get chat list with more specific sql query
a0667df change /chats/ and /chats/list to utilize new function
f531a51 chore: formatting

📊 Changes

2 files changed (+35 additions, -1 deletions)

View changed files

📝 backend/apps/webui/models/chats.py (+34 -0)
📝 backend/apps/webui/routers/chats.py (+1 -1)

📄 Description

Changelog Entry

Description

Performance issue #4035 has additional details.
This PR optimizes the query made to the database by selecting only the required columns.
The images which are stored in the database chat history make the slow down apparent when querying that endpoint, which happens on every reload.

This change will allow for significantly improved performance with large database sizes.

This PR doesn't solve the root issue, as the issue is caused by excessive database size.

Added

a function, similar to the existing database query function used in the /chats endpoint, which only queries the fields it needs

Changed

changed /chats and /chats/list endpoints to use the new function.
the function also had a bug which has now been resolved:
skip: int was passed as a positional argument to the function parameter include_archived: bool

    # argument #2 should not be "skip"
    return Chats.get_chat_list_by_user_id(user.id, skip, limit)

changed to

    return Chats.get_chat_title_id_list_by_user_id(user.id, skip=skip, limit=limit)

using keyword arguments to safely pass the params.

Screenshots or Videos

test done with 500mb database, artificially bloated with images
before optimization

https://github.com/user-attachments/assets/16419820-adbe-4b8b-85ec-391dbfdfb129

after optimization

https://github.com/user-attachments/assets/4f0bdd5b-7ab1-438e-bff4-64fa5d530e0c

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

## 📋 Pull Request Information **Original PR:** https://github.com/open-webui/open-webui/pull/4046 **Author:** [@thearyadev](https://github.com/thearyadev) **Created:** 7/22/2024 **Status:** ✅ Merged **Merged:** 7/24/2024 **Merged by:** [@tjbck](https://github.com/tjbck) **Base:** `dev` ← **Head:** `chat-list-optimization` --- ### 📝 Commits (3) - [`2b78e61`](https://github.com/open-webui/open-webui/commit/2b78e613a490f86425899bc145adb6b17dc607e5) add func to get chat list with more specific sql query - [`a0667df`](https://github.com/open-webui/open-webui/commit/a0667dfd1b095900a1400f953a99b461cc82baa5) change `/chats/` and `/chats/list` to utilize new function - [`f531a51`](https://github.com/open-webui/open-webui/commit/f531a51e91e83aadb4c862215fbb40b158077c0f) chore: formatting ### 📊 Changes **2 files changed** (+35 additions, -1 deletions) <details> <summary>View changed files</summary> 📝 `backend/apps/webui/models/chats.py` (+34 -0) 📝 `backend/apps/webui/routers/chats.py` (+1 -1) </details> ### 📄 Description # Changelog Entry ## Description Performance issue #4035 has additional details. This PR optimizes the query made to the database by selecting only the required columns. The images which are stored in the database chat history make the slow down apparent when querying that endpoint, which happens on every reload. This change will allow for significantly improved performance with large database sizes. This PR doesn't solve the root issue, as the issue is caused by excessive database size. ## Added - a function, similar to the existing database query function used in the `/chats` endpoint, which only queries the fields it needs ## Changed - changed `/chats` and `/chats/list` endpoints to use the new function. - the function also had a bug which has now been resolved: `skip: int` was passed as a positional argument to the function parameter `include_archived: bool` ```python # argument #2 should not be "skip" return Chats.get_chat_list_by_user_id(user.id, skip, limit) ``` changed to ```python return Chats.get_chat_title_id_list_by_user_id(user.id, skip=skip, limit=limit) ``` using keyword arguments to safely pass the params. ## Screenshots or Videos **test done with 500mb database, artificially bloated with images** before optimization https://github.com/user-attachments/assets/16419820-adbe-4b8b-85ec-391dbfdfb129 after optimization https://github.com/user-attachments/assets/4f0bdd5b-7ab1-438e-bff4-64fa5d530e0c --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

GiteaMirror added the pull-request label 2026-04-29 18:33:06 -05:00

GiteaMirror closed this issue

2026-04-29 18:33:10 -05:00

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Reference: github-starred/open-webui#44438