clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Table migration failed
- 2S2R cluster : Non working CTE on a DBT context after upgrade from 24.8.1.2684 to 25.3.2.39
- Support generating a ddsketch binary
- data lost in clickhouse
- All Kafka table engine is not initialized
- getAggregatingProjectionInfo is slow
- Complex SQL queries may time out
- No replica has part covering, and a merge is impossible: we didn't find a smaller part with the same min block
- [feature-request] - `formatSQLQuery` function and improve `clickhouse-format` to works with result of `normalizeQuery` result
- Vertical merges do not rewrite parts following the new index_granularity when restoring from a backup
- Docs
- C++ not yet supported