- Incude `channel_id` and `retrieved_at` in the database schema.
Create a personal dictionary
，这一点在服务器推荐中也有详细论述
但这个逻辑在2025年悄悄失效了。，更多细节参见搜狗输入法2026
Create a Jupyter Notebook that, using `polars` to process the data, does a thorough exploratory data analysis of data saved in `youtube_videos.db`, for all columns.