TLDR Tech / Data
The Hidden Cost of ai_parse_document in Production
Databricks' ai_parse_document + ai_query can turn messy PDFs into structured JSON in a few SQL lines, but the challenge is reliability at scale. Every rerun reopens parsing and LLM costs, corrected documents can create duplicates, and even temperature 0 still produces non-deterministic outputs that undermine auditability. A pipeline design with checkpoints, versioned prompts, and deduplication reduces reprocessing cost and improves reproducibility. Deterministic parsers like OpenDataLoader PDF are more appropriate when document templates are consistent.
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