clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix silent wrong results for a granularity close to the maximum of UInt64
- Show live disk I/O throughput in clickhouse-client's progress line
- Add lock free topk threshold tracker for numeric types.
- Recalculate TTL infos on merges that apply patch parts
- Reduce the Kafka streaming batch size after a memory limit error instead of retrying the same size
- Introduce `normalizedQueryHashUnordered` function
- Fix(PromQL): Accept parenthesized literal durations
- Use a designated directory in the home for clickhouse-local data by default
- Fix a hang in the `always_read_till_end` drain of sorted merges
- Iceberg OPTIMIZE ... MANIFEST synthesizes file_sequence_number for EXISTING entries instead of preserving the original
- Docs
- C++ not yet supported