clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- StringZilla ISA auto-detection mismatch causes build failure with X86_ARCH_LEVEL=4
- Add client settable `session_id`s to Native protocol
- Add FINAL BY with LIMIT pushdown for efficient coarse-grained aggregation
- Backport #98755 to 25.12: Fix tuple subcolumn access by name for external tables
- Narrow marks before reading with Projection Index
- [WIP] Keeper: treat a batch of requests as one nuraft entry
- The error "Lost connection to Redis server" is reported when inserting large-scale data(more than 1000000) into the Redis engine.
- MemorySanitizer: use-of-uninitialized-value (STID: 3809-3f21)
- Backport #98569 to 25.8: Disallow dropping column when its subcolumns are used in other columns default/alias expressions and use analyzer for default expressions on alter drop column
- Backport #98569 to 26.1: Disallow dropping column when its subcolumns are used in other columns default/alias expressions and use analyzer for default expressions on alter drop column
- Docs
- C++ not yet supported