clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix wrong results with parallel_hash JOIN and read-in-order-through-join
- Derive normal-projection metadata from the Analyzer query tree instead of the setting-gated old planner
- Additional user credentials with limited grants
- Fix hourly AWS MSK IAM authentication failures and improve auth observability
- JSONExtract(DateTime64) returns wrong value with best_effort setting
- Bound batched-mutation `IN`-set memory, not just mutation count
- Refreshable MV ignores auxiliary Keeper of Replicated database
- Correctness fixups and upgrages for WhatIf estimation
- Backport #107663 to 26.3: Fix runtime join filter producing wrong results for JSON columns
- Backport #108810 to 25.8: Fix segfault in StreamingStorageRegistry
- Docs
- C++ not yet supported