Tag
field-ids
- Sep 1, 2023 Schema Evolution Without Rewriting Files Why field names cannot identify a column across versions, how numeric field identifiers make renames and reordering safe, and which schema changes remain illegal regardless of identifiers. data engineering
- Feb 22, 2023 Why Columns Need Identifiers Rather Than Names How field identifiers let a renamed or reordered column keep its meaning across old files, which type promotions the format permits, and why a name-based schema cannot express either. data engineering