What is the primary architectural purpose of transforming complex PDFs into a Normalized Document Abstract Syntax Tree (AST) rather than a linear text stream during RAG ingestion?
Day 5: Preserve Structure During Parsing and Cleanup
Preserve Structure During Parsing and Cleanup
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When parsing PolicyDesk expense reimbursement tables, why is serializing rows as serialize_table_row produces far superior for downstream retrieval compared to raw text flattening?
In FieldDesk, page 48 of the X-840 manual has a DANGER callout box ('Relieve residual chamber B pressure before unbolting flange') immediately preceding Step 3. A naive parser processes two-column layout top-to-bottom, dumping the callout to the bottom of the page stream. When a technician asks how to unbolt the flange, retrieval returns Step 3 without the warning. How must a structure-preserving parser model this relationship during ingestion?