clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add test: Multi-file archive-glob `One` path in `StorageFileSource::generate` (EmptyReadBuffer at StorageFile.cpp:1568) untested
- Analyzer LOGICAL_ERROR 'Column identifier id is already registered' on ALTER/lightweight UPDATE with IN-subquery joining derived tables (regression in 26.6)
- Mark caught LOGICAL_ERROR exception as logged in BackupDataFileNameGenerator gtest
- Skip mark file read for parts with zero granules
- Fix LOGICAL_ERROR 'Trying to get name of not a column' in multiIf matcher inside table function argument
- Add test coverage and docs for force_add_bucket DataLake catalog setting
- Use ipnsort (unstable) and driftsort (stable) for general-purpose sorting
- Add per-part type narrowing for Dynamic columns (statistics-based, opt-in v4)
- Skip granules consumed by OFFSET when reading in order
- ARM performance regression: `date_time_64` query `16` is slower
- Docs
- C++ not yet supported