clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Feature Request: Enhanced S3Queue Tracking for Large-Scale, Persistent Data Ingestion (Infinite Records)
- Logical error in `DDLWorker::initializeMainThread` (active node already exist in ReplicatedDatabase)
- Clickhouse unconditionally loads all data from Arrow files in S3
- Empty result when using TTL GROUP BY with SET using any aggregation with a different column
- User defined function is executed for values that are not in the query by WHERE condition
- Logical error: 'New empty part is about to matirialize but the directory already exist'
- Delta Kernel very slow compared to _path declaration
- Cannot find column when negative number present in countIf on Distributed table
- Logical error: 'file_offset_of_buffer_end <= getFileSize()'
- query_plan_join_shard_by_pk_ranges doesnt work with FINAL
- Docs
- C++ not yet supported