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 supported64 Subscribers
Add a CodeTriage badge to clickhouse
Help out
- Issues
- Metamorphic equivalence violation in HAVING clauses due to buggy partition pruning on NaN values
- Treat float NaN keys as NULL on JOIN ON
- TLP partitioning over a mixed `RIGHT JOIN` + comma join tree can produce rows from an empty result set
- Add test: Non-`Array` sibling column skip in `tryResolveIdentifierAsNestedPrefix` is untested
- Reintroduce join lazy column indexes
- Speed up `DISTINCT` in order, sort-merge joins, `LIMIT BY` and negative `LIMIT BY`
- Enable avx512 codegen for amd and better codegen for `arrayDistance`
- Native reader and writer for the Arrow and ArrowStream formats
- Add integration test for Iceberg trivial-count optimization
- INNER JOIN on NaN condition returns incorrect rows with HAVING + UNION DISTINCT when enable_optimize_predicate_expression=0
- Docs
- C++ not yet supported