clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- `std::erase_if` on `join_algorithms` may empty the list, causing `NOT_IMPLEMENTED` exception on valid correlated subqueries
- Release pull request for branch 26.4
- `flattenTuple` discards null map from `Nullable(Tuple)` columns via `removeNullable`, returns default values instead of NULL
- Fix JSONHas and JSONExtractBool on native JSON returning the extracted value
- Support passing pre-acquired OAuth bearer tokens for Azure Blob Storage / ADLS Gen2 authentication
- Report thread-count metrics for <protocols> endpoints
- `DistributedIndexAnalysisThreadsScheduled` metric description has typo "idnex" instead of "index"
- `tryConvertAnyJoinToSemiOrAntiJoin` missing Storage Join guard causes `INCOMPATIBLE_TYPE_OF_JOIN`
- Trimmed predefined query missing newline separator causes `UNKNOWN_FORMAT` when binary data starts with identifier character
- Fix ChunkBuffer reader/writer race in common-subplan buffer
- Docs
- C++ not yet supported