clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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Help out
- Issues
- Fix a use-after-free in the gRPC server
- Cancel in-flight merges and mutations on server shutdown
- Answer min/max/count aggregations from per-part column statistics
- Prometheus HTTP API: implement /api/v1/format_query
- Use PREWHERE for filters pushed down into JOIN sides
- Fix optimize_functions_to_subcolumns rewriting onto the wrong subcolumn
- Size integration test workers from the job cgroup limit instead of host RAM
- Support PromQL count_values
- Report a missing object in local object storage as FILE_DOESNT_EXIST instead of STD_EXCEPTION
- Do not let lambda arguments capture identifiers of aliased expressions
- Docs
- C++ not yet supported