clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Report accepted_rows/accepted_bytes in X-ClickHouse-Summary for async inserts
- Add the mergeTreeParts table function
- Fix UniqueKeyProbeTest.NewestLiveWinsOverOlder aborting unit_tests_dbms in Debug builds
- Modularize the adaptive aggregation, weigh its thaw by staged bytes, and add the freeze-bytes and bucket-top-K settings
- Use the primary key index for first-tuple-element conditions and `pointInEllipses`
- Derive deterministic conditions from conditions involving the current time for the query condition cache
- Role settings profiles are not enforced on SET ROLE only at session-start
- Explain why `url` rejects a pattern that `s3` accepts
- Fix pre-epoch `toDateTime64OrNull` conversions with zero precision
- Add stateful storage memory profiler
- Docs
- C++ not yet supported