clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Early range() inlining is breaking distributed table queries
- hilbertEncode overflow for ints bigger than UInt32
- No Queries In Async Insert Buffer Flush When Only One Query Has A Bad Row
- Test `test_backup_restore_on_cluster/test_different_versions.py::test_different_versions` is flaky
- toUUIDOrZero does not recognise invalid UUID
- High znode count (~90k) causes instability in Keeper/ClickHouse replication
- Projections return stale data after materialized column modification
- PRIMARY KEY expression in column declaration does not work with COMMENT
- Logical error: 'persistent_components.format_version == metadata_object->getValue<int>(f_format_version)''
- Iceberg Rest Catalog: DB::Exception: Unable to parse ExceptionName: InvalidRequest Message
- Docs
- C++ not yet supported