clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Backport #99587 to 25.12: Prune unused columns from ARRAY JOIN
- MergeTree WHERE incorrectly evaluates AND with integer literal -2147483648 (INT_MIN) as false
- Add TLP and NoREC correctness oracles to the server-side AST fuzzer
- Add missing keeper_response_time_ms and keeper_batch_size_elements histograms to Keeper metrics export
- Logical error: Filter column for arrayRemove was not evaluated as ColumnUInt8 but as A (STID: 3494-613d)
- Fix duplicate columns in TableJoin::setUsedColumns causing exception in HashJoin::getNonJoinedBlocks
- ANY LEFT JOIN returns wrong rows after PR #99939: SEMI/ANTI misconversion with not-ready IN subquery
- DESCRIBE TABLE (...) AS <alias> syntax broken since version 26
- UndefinedBehaviorSanitizer: undefined behavior (STID: 2527-362b)
- Add test for std::abs(INT64_MIN) UB in WITH FILL STEP on Date/Date32
- Docs
- C++ not yet supported