clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Improve the performance of `rb_contain` of 32-bit Bitmap
- Backport #64801 to 24.3: Fix distributed array join by nested
- Fix "attaching_" prefix for deduplicated parts
- OOM are prone to occur in window functions
- Reduce memory usage for some window functions
- Do not use default `ReadSettings` in `readFile` (use `context->getReadSettings()`)
- Unexpected result of WHERE for subquery with omitted GROUP BY and UNION ALL
- Implementing "move part to shard" feature with Fixes
- 02440_mutations_finalization is flaky
- A query does not work with parallel replicas.
- Docs
- C++ not yet supported