clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Slow shutdown of `MergeTreeBackgroundExecutor`
- Queries sometimes fail with "expected TablesStatusResponse, got TableColumns"
- Better visibility of the advanced dashboard
- MySQL interface sends SQLSTATE 00000 instead of HY000 for failed queries
- User can execute revoke for priviliges which they never had (without error)
- How does clickhouse count the number of times a field value is continuously greater than a fixed value
- ClickHouse 23.5.2 insists on using bloom filter skipping index where it's unsuitable, fails to execute a query
- Concurrent lightweight delete and attach detach partition.
- How to insert local table from local on cluster efficiently?
- LowCardinality & Enum optimization for SELECT [DISTINCT] key FROM table [GROUP BY key] ORDER BY key [LIMIT 1000]
- Docs
- C++ not yet supported