clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Report the fatal message the CI failure scan found instead of a lost connection
- Fix duplicate filter push-down in plan-based parallel replicas
- Fix KeyCondition CAST fast path pruning rows on DateTime64 scale mismatch
- Fix `Join is supported only for pipelines with one output port` in a `parallel_full_sorting_merge` join
- Fix ORDER BY WITH FILL mis-placing generated rows around a NULL value
- I/O-aware CPU leases: release the CPU slot during non-CPU waits
- Fix `Not-ready Set` when `additional_result_filter` contains an `IN` subquery
- Text index: apply the preprocessor wherever the tokenizer applies
- Memory-track the JSON `FLATTENED` path list read from `Native`
- Split an oversized chunk across several Arrow record batches
- Docs
- C++ not yet supported