Query-Optimization on Kent Yao https://yaooqinn.github.io/tags/query-optimization/ Recent content in Query-Optimization on Kent Yao Hugo -- 0.157.0 en-us Wed, 27 May 2026 00:00:00 +0000 LLMs Shouldn't Replace the Query Optimizer — They Should Sit Behind It https://yaooqinn.github.io/posts/query-engines/llm-as-plan-tuner-not-optimizer/ Wed, 27 May 2026 00:00:00 +0000 https://yaooqinn.github.io/posts/query-engines/llm-as-plan-tuner-not-optimizer/ Putting the LLM after the optimizer, emitting JSON patches for local plan tuning, is easier to reason about as engineering than asking it to replace the cost-based optimizer.