clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Skip removed `users` entries in the main YAML config parser
- wrapWithSelectOrderBy crashes on multi-column SELECT due to single-alias override
- Add random projection functions for changing dimensionality of vector embeddings
- Backport #101115 to 26.2: Fix out-of-bounds access in lazy materialization with projection PREWHERE
- Allow creating table as table function with another engine
- `lowerUTF8()` throws `ucasemap_utf8ToLower: U_ILLEGAL_ARGUMENT_ERROR` on valid UTF-8
- Fix `LOGICAL_ERROR` 'Shard number is greater than shard count' in parallel replicas
- Fix llvm objcopy location for rust symbol mangling
- SHOW MASKING POLICIES gives UNKNOWN_TABLE (60) instead of SUPPORT_IS_DISABLED (344)
- CH v26.3.2.3-lts - NOT_FOUND_COLUMN_IN_BLOCK error from VIEW with PROJECTION
- Docs
- C++ not yet supported