An LLM-generated SQLite reimplementation in Rust compiles successfully and passes tests but performs approximately 20,000 times slower than the original C version on basic database operations like primary key lookups. The article argues that large language models optimize for plausible-looking code over correctness, and recommends users define acceptance criteria before code generation to identify such issues.
Otto Beta
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An LLM-generated SQLite reimplementation in Rust compiles successfully and passes tests but performs approximately 20,000 times slower than the original C version on basic database operations like primary key lookups. The article argues that large language models optimize for plausible-looking code over correctness, and recommends users define acceptance criteria before code generation to identify such issues.