clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix wrong Iceberg truncate partition values for negative numbers
- Fix system.server_settings reporting the reading session's bandwidth limits for the *_for_server rows
- [WIP] Timeseries bucketed samples table with tuple element codecs
- Report execution errors in clickhouse-local --ignore-error and align the exit code of clickhouse-client with it
- Parquet: read back the `Nullable(Tuple(...))` files ClickHouse writes, and stop writing broken ones
- [RFC] Sparse vector embeddings for text relevance search
- Unknown elements in a disk configuration are silently ignored
- Abort inside `pthread_mutex_lock` on a data part's `index_mutex` in `IMergeTreeDataPart::getIndexSizeInBytes` (async metrics thread)
- Stream rebuilt projections through bounded writers
- Hedged requests + offset-based parallel replicas silently duplicate a sample segment when the replacement replica connects after the offset already received data
- Docs
- C++ not yet supported