clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix three `librdkafka` data races that abort `amd_tsan` Kafka tests
- Put the `create_new_file_on_insert` sequence number into the file name, not a directory
- Cherry pick #129193 to 26.3: Fix server abort when an Arrow Flight query throws while finishing
- Fix wrong results of window functions with different `PARTITION BY` planned for one thread
- CI: smoke-test the ppc64le build under QEMU (reproduces #127366, then guards)
- Refactor: share the traversal of ActionsDAG nodes between its walks
- Fix `ngrambf_v1`, `sparse_grams` and `text` indexes dropping rows for a pattern or needle that is not valid UTF-8
- Skip Parquet row groups of Iceberg data files by JOIN runtime filters
- Improve "Filesystem cache overview" dashboard in system.dashboards
- Do not print pointers in NuRaft logs
- Docs
- C++ not yet supported