clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- S3Queue `after_processing='delete'` silently leaves objects in the bucket
- Record TopK-filtered granules in the query condition cache
- Fix ANY/SEMI RIGHT JOIN with OR conditions emitting rows twice or losing matches
- Expose live progress / completion percentage for in-progress mutations
- S3 table with a globbed path and PARTITION BY is rejected since 26.6, and pre-existing tables of that shape no longer load
- Fix columns reading as defaults after a merge during a pending RENAME COLUMN
- Fix generated navigation and adaptive codec link
- Transport join runtime filters across distributed plan stages
- Support aggregate functions in the trivial GROUP BY LIMIT optimization
- Fix flaky 02572_query_views_log_background_thread
- Docs
- C++ not yet supported