clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix the bit-sliced full adder in `groupNumericIndexedVector`
- [RFC] Add most-common-values (`mcv`) column statistics for better equality/IN selectivity on skewed columns
- Mongo queries: keep whole documents in a JSON column
- Imply make_distributed_plan from distributed_plan_workers_num
- Add test: JSON shared data at the max 256 buckets is untested end-to-end
- diff-review skill second edition
- Reject a Parquet offset index whose first page does not start at row 0
- Interpolate the weighted quantiles in the integer domain
- Docs: add ClickStack guide for isolating read and write workloads
- Scale the lldb stacktrace budget by build flavor, keep timed-out dumps
- Docs
- C++ not yet supported