clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- startsWith() with multiple values, or can substring be made to use the PK index?
- ASOF for engine=Join
- About with expression and with fill expression
- Memory limit exception on ORDER BY pk with LIMIT 1
- Can't create a materialized column on a nested column using syntax sugar
- Supporting Apache Arrow Flight
- Supporting exactly once
- rand() function inconsistent with other databases
- upperUTF8 for some special cases gives wrong results
- ClickHouse lacks an LPAD function
- Docs
- C++ not yet supported