clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- [CI crash] Error during query plan building for subquery
- Fix reading subcolumns of alias columns
- Attaching a table with multiple names
- Performance with bitmap functions
- Implement a sorting queue using a loser tree to improve merge sort performance
- Avoid `total_memory_profiler_*` overrides per-query `memory_profiler_sample_*` settings and enable memory sample profiler on CI
- Add replica_host configuration for DatabaseReplicated
- Protobuf input_format_protobuf_oneof_presence duplicates rows causing LOGICAL_ERROR
- [CI crash] Inconsistent number of rows in chunk during transformation
- Add Arrow Flight SQL support
- Docs
- C++ not yet supported