v.25.11Improvement
Support non_replicated_deduplication_window
Support non_replicated_deduplication_window for tables with a disk that does not implement writing with append. Resolves #87281. #89796 (Tuan Pham Anh).Why it matters
This feature addresses the limitation where tables stored on disks not supporting append-only writes could not use thenon_replicated_deduplication_window setting. It enables deduplication for such tables, improving data consistency and correctness in non-replicated scenarios.How to use it
To use this feature, define your table with thenon_replicated_deduplication_window setting as usual, even if the table's storage disk does not implement append-only writes. ClickHouse will now support deduplication properly under these conditions.