clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- From 24.3, Kafka table Engine frequently timeout: consumers had been closed (due to 60000000 usec timeout)
- ROLLUP aggregations do not work MVs based on MergeTree Engine
- Implement support for prepared statements for the MySQL wire protocol: MySQL interface not compatible with Postgres' `mysql_fdw` foreign data wrapper.
- Possible deadlock using clusterAllReplicas against system tables
- Issues with parametrized views and new analyzer/recent versions
- Parameterized view with table identifier as a parameter not working
- Joins with Compare operators doesn't work
- When select all columns from distributed table immediately after insertion, the result is incorrect.
- Exceptions when reading from url()
- Backup fails with code 598. A concurrent backup writing to the same destination
- Docs
- C++ not yet supported