clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Backport #107011 to 26.5: Fix Variant statistics merge using local instead of global discriminator
- Enable more Ruff checks (F401/F403/F405/F541/F841) and clean up tests
- clickhouse-format: add --align-column-types option
- KeeperDispatcher (use_new_dispatcher=true) causes constant ~20-25% CPU on idle single-node
- Logical error: Block structure mismatch in A stream: different columns: (STID: 0993-28b7)
- Backport #107915 to 26.4: Fix position-dependent column-wise insert deduplication hash
- Backport #107915 to 26.5: Fix position-dependent column-wise insert deduplication hash
- Backport #106349 to 25.8: Fix crash in constraint optimization with correlated subqueries
- Fix `NOT_FOUND_COLUMN_IN_BLOCK` when a `set` skip index is used with a row policy
- Backport #107915 to 26.3: Fix position-dependent column-wise insert deduplication hash
- Docs
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