clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Potential memory leak when using optimize_aggregation_in_order
- WIP: Fixing failing FT in praktika CI
- Reading from dictionary with dictGetOrNull() changes values in other columns.
- Removing manual timeout checks
- Add `READ/WRITE` permissions for sources
- JSON datatype subcolumn primary key
- Parallel replicas: fallback to local execution if cluster has only one replica
- Parallel replicas: join with group by in subquery
- Backport #72261 to 24.8: Fix `ALTER DELETE` queries with materialized `_block_number` column
- Replicated fetches cannot make forward progress under intermittent packet loss
- Docs
- C++ not yet supported