Expand description
Schema evolution request types (Phase G).
SchemaEvolution is a pure metadata operation — no data files are rewritten.
initial-default in each added field tells readers what value to return for
old files that predate the column. Corresponds to Iceberg V2/V3 spec §4.1.1.
Structs§
- AddColumn
Request - Request to add a new column to the table schema.
- Rename
Column Request - Request to rename an existing column (field-id stays stable).
- Schema
Evolution - Atomic schema evolution transaction applied in a single
metadata.jsonrewrite.