clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Do not install standalone symlinks for multi-call-only subcommands
- Allowlist rdb_test_ DDLWorker UUID-collision upgrade-check restart noise
- Fix Arrow time32/time64 wrongly picking up timezone when inserted into Time/Time64
- Datalake rest catalog profile events
- Support `keys{32,64}` in HashJoin
- Add `system.contribs` table
- [not for merge] Instrumentation to demonstrate and catch a borrowed-`ThreadGroup` use-after-free in CI
- Do not remove DISTINCT over GROUP BY with CUBE/ROLLUP/GROUPING SETS
- Reject decorrelation of correlated subqueries with WITH TOTALS
- Reload executable_pool UDFs on <lifetime> when the script changes
- Docs
- C++ not yet supported