clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix exact object existence checks in S3 backup IO and destination path in Azure backup copyFile
- Support group_by_use_nulls in WITH TOTALS
- Fix minmax skip index and partition pruning skipping NaN under negated float ranges
- Fix wrong result for duplicate-named subquery columns wrapped in SELECT *
- Logical error: 'Inconsistent AST formatting: the original AST: (STID: 1941-1bfa)
- Add Vector(T, N) data type for dense fixed-dimension vectors in exact vector search
- [CI crash] MergeTreeReaderCompact readData failed during data deserialization
- Cherry pick #106692 to 25.8: Fix segfault due to use-after-free in NATS
- Fix race between quorum failure cleanup and GET_PART queue entries.
- Flaky test `test_iceberg_snapshot_reads`: stale count after Spark append, and batch `create_iceberg_table` failures
- Docs
- C++ not yet supported