clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Parallelize fsync of part files in MergeTree
- Backport #102921 to 25.8: Disable trivial LIMIT optimization with row policies/additional_table_filters
- Stabilize 03381_lazy_materialization_limit_offset under MSan + WasmEdge
- Performance regression in Iceberg manifest reading: exception hot-loop, eager log serialization, and std::filesystem::path in resolve()
- Fix column order in DirectJoinMergeTreeEntity::getByKeys
- Pass an exception for already removed `pr-backports-created` from an original PR
- Fix SQLite WHERE predicate pushdown for strings with special characters
- Refuse QueryConditionCache writes from contexts with relaxed/experimental settings
- docs: clarify volume selection precedence on INSERT in system.storage_policies
- Coalesce consecutive page cache misses into single S3 requests
- Docs
- C++ not yet supported