clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- `ALTER UPDATE ipv6_col = toIPv6(IPv4NumToString(v))` silently produces corrupted parts; compound RENAME then crashes the server in a retry-loop (23.7.5)
- Flaky test: 04078_native_protocol_input_validation
- Lexical error at line 3, column 167. Encountered: "\u538b" (21387), after : "". If you believe the SQL is valid, please feel free to open an issue on Github with this warning and the following SQL attached
- "dictGet" result compares unequal to a value of the same type and same displayed value (direct equality fails, arithmetic and CAST work)
- Fix `INTERPOLATE` + `LIMIT BY` dependency mismatch in planner
- Fix boundaries for Date32 monotonicity
- claude: Add `clickhouse-pr-description` skill instruction to project CLAUDE.md
- Optimize `LIMIT BY`
- Fix EXPLAIN SYNTAX when expanding Parameterized Views
- CI: fix performance-test server killing its own driver via shared process group
- Docs
- C++ not yet supported