clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Backport #105949 to 26.3: Fix server abort when cancelling postgresql table function queries
- Backport #105579 to 26.3: Fix nullptr deref in CREATE TABLE TO INNER UUID without ENGINE
- Support bf16 in `dotProduct`
- Fix flaky test_replicated_database_and_unavailable_s3 (digest substring match)
- Fix text index fallback for failing preprocessor casts
- try to fix logical error with cross join reorder
- Do not report test-runner abortions and per-test timeouts as Server died
- Metamorphic equivalence violation in HAVING clauses due to buggy partition pruning on NaN values
- Fix `DISTINCT`, `LIMIT BY`, negative `LIMIT BY` in order optimizations giving wrong results with collation
- Fix `LIMIT` with `TIES` and fractional `LIMIT` with `TIES` ignoring collation
- Docs
- C++ not yet supported