clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- 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
- [WIP] Seal-gated reading: gate the probe side of a hash JOIN on the runtime filter and prune read ranges by it
- Web UI: scope the `run=1` URL marker to the tab that produced it
- Fix non-atomic Keeper Raft state persistence
- Evaluate PromQL topk/bottomk/limitk with a streaming O(T * k) plan
- Treat a NUL byte as an ordinary literal in match patterns
- Honour the declared result type in FunctionIn
- Docs: Make it more clear which NLP functions are experimental or non-experimental
- Docs
- C++ not yet supported