clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Failed ALTER RENAME COLUMN rollback on MergeTree leaves the rename mutation applied against mismatched metadata
- `HAVING` on a grouping key is not pushed below aggregation on shards and replicas running to `WithMergeableState`
- Clamp random `index_granularity` in test `05326_minmax_pruning_use_skip_indexes_repro`
- Forward Azure client timeouts to the delta-kernel object store
- Re-tag query condition cache keys after PREWHERE optimization
- Cherry pick #128492 to 26.10: Send the structure with `DEFAULT` expressions to the nodes of `fileCluster` and `urlCluster`
- Re-discover the cgroup v2 memory files in `MemoryWorker` and `AsynchronousMetrics` after they are removed
- Reset the SQLite input format between streamed inputs
- Fix typo in Docker entrypoint comment
- Do not count the profile events of a merge run by `OPTIMIZE` twice globally
- Docs
- C++ not yet supported