Tag
sql-parsing
- Mar 25, 2024 Column-Level Lineage and the Cost of Tracking It Deriving which upstream column feeds which downstream column requires parsing every query; the alternative is coarse and the fine-grained version has an unbounded cost. data engineering
- Oct 21, 2023 Parsing SQL: Clause Structure and Expression Precedence How a statement becomes a parse tree, where the SQL grammar is genuinely ambiguous, and which decisions the parser deliberately leaves to later stages. databases