clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Recursive CTE: experimental USING KEY (keyed recursion / semi-naive evaluation)
- Fix outdated disk recovery log messages referencing SYSTEM RESTART DISK
- Fix/cluster discovery keeper exception
- Backport #105395 to 26.3: Fix flaky test_kafka_bad_messages::test_log_to_exceptions log-order race
- Backport #105395 to 26.5: Fix flaky test_kafka_bad_messages::test_log_to_exceptions log-order race
- Support additional KLL and REQ quantile algorithms
- Add function arrayElementOrDefault
- LIKE without wildcards uses a wider primary key range than an equivalent equality predicate
- Fix Virtual row with union produces wrong result
- darwin fast test: attach full server stacktrace dumps as logs; fix lldb attach on macOS
- Docs
- C++ not yet supported