Almost every slow Polars script lacks in terms of one of these two: its expression engine written and executing in Rust across every core at its disposal, and its query optimizer that rewrites your ...
状态：已实施并线上运行（2026-09-11） 入口：主站 /skill/（教材知识库子站）→ 「AI 问答」；后端 /skill-api/*（Cloudflare Worker ...
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