clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Logical error: 'current_version != existing_version' (STID: 2508-3ef8)
- Fix NOT_FOUND_COLUMN_IN_BLOCK on hive-partitioned files when WHERE filters a real column
- Add `query-analyzer` util for profiling query analysis
- Improve text index condition description in `EXPLAIN`
- Keeper: SIGABRT (LOGICAL_ERROR in commit_in_bg) on every reconfig+restart during quorum migration on 25.8 — regression of #72234?
- Fix missing variant_discr stream for Dynamic columns after mutation
- Fix "No set is registered for key" for a subquery used as both FROM source and IN argument
- Performance regression: float_formatting query 1 is slower on arm
- Add regression test for not-ready Set nullIn in ANY JOIN filter
- Fix FileLog crash on delete+recreate reusing the same inode
- Docs
- C++ not yet supported