clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix reading Paimon tables with a nullable ARRAY or MAP column
- Push down plan level constants from joins
- Fix expat parser leak when a Poco XML handler throws
- Do not prefetch unneeded substreams when reading a whole JSON path from advanced shared data
- Reap the test process groups the abort path orphans
- Observe query cancellation in the compact-part mark read loop
- Report cancellation instead of a network error for a cancelled `url` failover read
- Add mutation completion time `finish_time` to `system.mutations`
- Fix the fuzzer dictionary coverage check aborting under a UTF-8 locale
- Fix logical error in topK dynamic filtering when the sort column contains a Nullable
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- C++ not yet supported