clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Cherry pick #105041 to 25.8: Fix LOGICAL_ERROR for reused materialized CTE filtered by IN over another materialized CTE
- Cherry pick #105041 to 26.3: Fix LOGICAL_ERROR for reused materialized CTE filtered by IN over another materialized CTE
- RFC: Per-part type narrowing for Dynamic columns and partition-aware JSON schema hints
- std::bad_alloc on macOS 26.5.1.882 after repeated partitioned and ordered window query
- Make startup DNS resolution of remote_servers hosts non-fatal (lazy/retry/skip-unresolvable)
- Flaky test: test_refreshable_mat_view_replicated/test.py::test_circular_dependencies_survive_restart (max_t not unique after cluster restart)
- Parameterized CTE
- Read amplification for sparse row access from text index on object storage
- Fix trailing comma in SELECT when the last column has an alias
- Allow display password hashes for existing users
- Docs
- C++ not yet supported