clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- ClickHouse Iceberg Catalog: Support stage-create
- Fix crash when appending `PostgreSQLWire` output to a non-empty file
- Fix `LOGICAL_ERROR` on `ALTER DELETE` of a `Join` table with `join_use_nulls` and a `LowCardinality` column
- Cap the filesystem cache boundary alignment at `max_file_segment_size`
- More fuzzing in CI
- Fix duplicate inserts and undeleted objects in ordered S3Queue with several processing threads
- Read old `Geometry` parts that have no `MultiPoint` streams
- Fix silent Iceberg data loss on GCS parallel INSERT.
- Use `hash_join_layout` in performance tests and drop the largest `parallel_hash_join_threshold` special case
- Reject UNIQUE KEY on disks that do not support writing with append
- Docs
- C++ not yet supported