clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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Help out
- Issues
- Push down volume-reducing functions in query plan
- Support Remote and RemoteSecure storage engines
- Find bad usage of storage in-memory metadata
- Remove per-thread (VariableContext::Thread) MemoryTracker
- Streaming Watermarks
- Don't fail CI when only the CIDB staging log cluster is unresponsive
- Allow ON CLUSTER `<db_name>` pass-through on Replicated / Shared databases for RENAME and EXCHANGE
- Add iceberg_parallel_manifest_decode_threads for parallel manifest decoding
- "High" idle CPU usage due to loop in AsynchronousInsertQueue::processBatchDeadlines
- `IS NOT NULL` on Iceberg with V3 parquet reader throws `NOT_FOUND_COLUMN_IN_BLOCK`
- Docs
- C++ not yet supported