clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Dynamic column selection in materialized expression
- Alter update with rename unexpected behavior
- Unexpected result when querying a table with a WHERE clause on a Float32 column in SQL
- PR: explicit coordinator initialization with local plan
- Use cluster table functions automatically if parallel replicas are enabled
- Extra check for formatting consistency
- `right outer join` on 2 distributed tables produces unexpected result
- Add support for EXPLAIN ANALYZE
- [WIP] A new parquet reader that supports filter push down, which improves the total time on clickbench by 50+% compared to arrow parquet reader
- 24-alpine Docker tag reverted to 24.3?
- Docs
- C++ not yet supported