clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Let TopN dynamic filtering share PREWHERE, with `__topKFilter` first
- Finalize output formats after the pipeline has finished
- Add an opt-in access control improvement so that readonly restricts SET ROLE
- Saturate an `Enum8` or `Enum16` converted to `DateTime` or `Date`
- Fix ORDER BY WITH FILL emitting generated rows before a NULLS FIRST NULL
- Do not report a server that rejects every query as a possible deadlock
- Fix potential data loss during Keeper cross-disk moves
- Provide `_table` and `_database` virtual columns to mutations
- Fix the global memory tracker getting pinned at the previous peak after a one-shot correction to resident memory
- Docs: Add sqlflow integration page (data ingestion, community)
- Docs
- C++ not yet supported