clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- The `distinct` operation can be executed in parallel on a per-partition basis
- Part is broken. No stream (source_code_position.size.bin) file checksum for column, columns format version: 1
- Second attempt: Fix analyzer: fix miltiIf short circuit with constant arguments
- Safer hints for missing grants in exception messages
- Experimental part pruning by partition ID prefix
- Add PGN (portable game notation) input format
- Fix logical error in getMinMaxTime() when Nullable DateTime column has all NULLs
- Push ORDER BY from outer query into simple VIEWs for distributed optimization
- Apache DataSketches Support for Cross-Service Sketch Interoperability & Analytics
- Hybrid storage
- Docs
- C++ not yet supported