clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
Triage Issues!
When you volunteer to triage issues, you'll receive an email each day with a link to an open issue that needs help in this project. You'll also receive instructions on how to triage issues.
Triage Docs!
Receive a documented method or class from your favorite GitHub repos in your inbox every day. If you're really pro, receive undocumented methods or classes and supercharge your commit history.
C++ not yet supported66 Subscribers
Add a CodeTriage badge to clickhouse
Help out
- Issues
- A query cannot leave a remote read that waits in the reader pool queue
- S3 requests of queries and merges retry up to ~41 min: the backup retry budget became the default for everyone
- Settings profile changes do not reach merges and other background work until a restart
- part_log does not show the real I/O of a merge: counters of its pool tasks are missing
- Azure opt-in marker changes disk identity across sessions, breaking re-ATTACH
- AzureQueue move check throws out of `commit`: batch re-ingested every poll
- Wide system logs with ~2,000 columns: an explicit engine keeps metric_log wide, and query_metric_log has no narrow schema
- Iceberg read-in-order: `ORDER BY key DESC LIMIT` returns wrong rows
- Iceberg read-in-order returns unsorted rows when data files outnumber streams
- `latest_sequence_number` is NULL for format v1 Iceberg snapshots instead of 0
- Docs
- C++ not yet supported