clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Reject CREATE TABLE ... CLONE AS SELECT / table function
- Speed up server shutdown for databases with many tables
- Add server setting `additional_memory_tracking_per_thread`
- udfs and table-functions deny lists
- Declarative function signatures, continuation of #3775
- Transform JOIN hash table payload to row major
- feat(promql): Allow Prometheus handlers to target TimeSeries tables via HTTP headers.
- Support Nullable(Array)
- Fix `NOT_FOUND_COLUMN_IN_BLOCK` in `query_plan_convert_join_to_in` with `arrayJoin` JOIN key
- Vector similarity pk partial filter
- Docs
- C++ not yet supported