clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- fix parallel_inserts setting parsing for S3Queue
- Fix possible logical error "Unexpected substream ... for column ..." during bump of compatibility setting
- s3queue - add `buckets_per_partition` for better parallelization
- Fix flaky test_long_disconnection_stops_backup: allow transient UNKNOWN_TABLE
- Log tolerated connection failures to remote MySQL/PostgreSQL databases as warnings instead of errors
- Materialize column statistics on INSERT for small tables by default
- use_skip_indexes_on_data_read cause query text index 5x slow when primary key is not exact!
- Native Google Cloud Storage integration (google-cloud-cpp)
- Fix split-dependent hash of JSON/Object columns
- Add ALTER TABLE ... RECOMPRESS COLUMN
- Docs
- C++ not yet supported