clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add virtual columns from v3 spec for CDC pipelines
- Read the global settings under a lock in Context::getReadSettings
- Nullable(Array) stages 1-2: type foundation and collision-free substream names
- Randomize new settings for independent DISTINCT, parallel single-level merge and parallel full sorting merge join
- Attach the system tables in `clickhouse local` on first access
- Add memory_eviction_score query setting for memory reservation eviction order
- Add a TOLERANCE clause to ASOF JOIN
- Do not delete staged Iceberg files when a catalog commit outcome is unknown
- Add ALP encoding support for Parquet
- Extend adaptive codec selection to all types
- Docs
- C++ not yet supported