[Prototype] feat: Concurrent identity columns - #3290

Draft

Rob2U wants to merge 5 commits into

delta-io:mainfrom

Rob2U:concurrent-identity-columns-prototype

Commits on Sep 9, 2026

feat: add Concurrent Identity Columns (CIC) support
Rob2U
committed
3faee3f
refactor!: consolidate CIC reserve-and-fill behind `IdentityColumnManager`
Rob2U
committed
328aa2b
fix: track claimed identity values so concurrent consumers get disjoint ranges
Rob2U
committed
5cdee9c
fix: register UC identity sequences after CREATE-table commit
Rob2U
committed
5e79590
refactor!: move CIC reservation state into kernel and rename `IdentityColumnManager` to `IdentityColumnWriter`
Rob2U
committed
916d65b