Hi everyone, I'd like to start a vote to add table constraints to the Iceberg v4 table spec: https://github.com/apache/iceberg/pull/17822
Summary of the change: - Adds three constraint types: `check`, `unique`, and `primary-key` - Constraint definitions are stored in table metadata, with an `enforced` flag that controls whether writers must verify the rows they add or modify - Each snapshot records the status of each constraint in `constraint-statuses`: `validated`, `valid`, `invalid`, or `unvalidated` - A `primary-key` constraint replaces identifier field IDs in v4. When a table is upgraded to v4, its identifier fields are converted to a `primary-key` constraint that is not enforced Thanks to everyone who reviewed the PR and joined the constraint syncs. The vote will be open for at least 72 hours. [ ] +1 Add table constraints to the v4 spec [ ] +0 [ ] -1 I have concerns because ... Thanks, Huaxin
