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
- max_cpu_share workload scheduling not working for unprivileged users
- Read-in-order misplaces NaN/NULL nested in Tuple/Array sorting keys
- ORDER BY elided after sort through negate, wrong NaN/NULL placement
- NaN-placement check trusts `sign`/`roundDuration` to keep NaN: sort elided
- Join reordering builds the hash table from the large Iceberg table when a side has no row estimate: TPC-H Q3/Q8/Q17 over Iceberg are 10-30x slower since 26.5/26.6
- Explicit grace_hash now spills at max_bytes_ratio_before_external_join = 0.5 although the build side fits in memory: TPC-H Q9 56% slower since #119335
- Track provenance of relation statistics
- Statistics creation on JSON columns
- `S3Queue` ignores `s3queue_`-prefixed format settings when parsing
- `RESTORE` of a `MySQL` table or database fails with "has a different definition" when the session sets `mysql_datatypes_support_level`
- Docs
- C++ not yet supported