clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- `remote()` and a database name with a dot
- DB::Exception: Newly added column B has a default expression, so adding expressions that use it to the sorting key is forbidden.
- '-Resample' combinator limitations
- Increase the search conditions to achieve the purpose of narrowing the search scope, but the result is that more data is parsed, and the query becomes slower
- Change MySQL engine configuration when the mysql is not accessable
- Method optimize is not supported by storage Join
- Do not lose stderr/stdout from clickhouse-odbc-bridge
- Shuffle / Redistribution based join / aggregation
- ALTER USER renaming to default allowed
- Multiple sending data from a distributed table
- Docs
- C++ not yet supported