Monotonic snapshot timestamp and expose a new metadata column _last_updated_timestamp_ms
Open
Iceberg V4
proposal
- Dominant language
- Java
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- Avg merge
- 2d 11h
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Description
### Proposed Change
There are two parts that are connected.
1. Add monotonic requirements for v4 snapshot timestamp
2. Expose a new metadata column: _last_updated_timestamp_ms. New files should inherit from the snapshot timestamp.
### Proposal document
https://docs.google.com/document/d/1cXr_RwEO6o66S8vR7k3NM8-bJ9tH2rkh4vSdMXNC8J8/edit?tab=t.0#heading=h.jg38ttxkczi3
### Specifications
- [x] Table
- [ ] View
- [ ] REST
- [ ] Puffin
- [ ] Encryption
- [ ] Other
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