clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix backup lock file check errors handling
- Revert "Generate the fuzzer dictionary from a release binary instead …
- Replace the per-bucket hash map in `timeSeries*ToGrid` with a sorted-append sample array
- Fix undefined behavior and a double-counted metric in the workload throttler
- Docs: update Foursquare OS Places access
- Understanding the trade-offs of dirty_decay_ms=0 for jemalloc in ClickHouse
- Skip the custom-key parallel replicas read when the requested stage cannot absorb finalized data
- TimeSeries: Pack cold buckets of the `timeSeries*ToGrid` aggregate states into delta-encoded blobs
- Docs: add view/dictionary/named-collection usage limits
- Add a setting to enable each experimental codec individually
- Docs
- C++ not yet supported