The dataset_keyword_tables table occupies a large amount of storage space

[Lxx-c]

Self Checks

• [X] This is only for bug report, if you would like to ask a question, please head to Discussions.
• [X] I have searched for existing issues search for existing issues, including closed ones.
• [X] I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
• [X] [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:）
• [X] Please do not modify this template :) and fill in all the required fields.

Dify version

0.8.0

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

The dataset_keyword_tables table occupies a significant amount of storage space. What is the main purpose of this table? He only has 6 pieces of data, but it occupies 300GB of space. And I passed the test, and the total size of the file data I uploaded was 1M, but the incremental data of this table reached 300M.

✔️ Expected Behavior

Could you please explain the main purpose of this table and whether it is possible to clean it up

❌ Actual Behavior

No response