Comment by malisper
14 hours ago
Funnily enough, you could replace "LLM query planner" with just "query planner" and this comment would still hold true
14 hours ago
Funnily enough, you could replace "LLM query planner" with just "query planner" and this comment would still hold true
That bug is fixable and verifiable. The LLM you cross your fingers till the next time the same thing happens.
> fixable and verifiable
By people with a specific skill set. LLMs generation can also be fixed and verified by people with a certain skill set, and non-deterministic computing doesn't automatically mean unpredictable. When people say that the LLMs are a black box, it means unpredictability in unknown situations.
You do structured output, input validation, output validation, lower temperature, limit decisions, RL, etc. to increase predictability to near certainty. It's just statistics after all. Or you can as well generate the code to do the job.
It's just that the required skill set is a different one to do those things, and unusual in the context of DB administration.
None of the things you mention are guaranteed to increase the probability of correctness. You can run the LLM output through as many deterministic programs as you like, but "the query plan runs in acceptable time" is not something you can verify with such a tool. Nobody knows how the LLM does it, so they cannot know how to make the LLM do it better.
Only if someone is planning on running a pinned self hosted version of an LLM alongside the DB to fix the problem. The developer can change the binary easy enough and test it but the LLM approach just seems either theoretical or bending ourselves in knots to justify using an LLM.
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