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 supported68 Subscribers
Add a CodeTriage badge to clickhouse
Help out
- Issues
- PREWHERE on the right table of a GLOBAL JOIN throws 182 `Storage Memory (table _temporary_and_external_tables...) does not support PREWHERE` while the local join accepts it
- arrayJaccardIndex union from arrayUniq disagrees with arrayIntersect: returns inf
- Incremental refresh persists an empty cursor when the read ends early
- Incremental RMV cursor has no source identity: rows lost after EXCHANGE TABLES
- Frechet pair score hits 0.0 and always wins: IEJoin picks a 2000x worse key pair
- Count only active replicas when distributing Kafka partition locks in StorageKafka2
- Sorted Gather does not track sort keys through aliases, retaining redundant exchanges and delaying filters
- `KeyCondition` ignores `cast_string_to_date_time_mode`: ISO `Z` literal rejected
- CBO underestimates join and partial aggregation costs when runtime filtering skews reader output
- `clickhouse-client --login` opens `lynx` instead of desktop browser on Linux
- Docs
- C++ not yet supported