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
- Fix FileLog reading a file whose name ends with `.tmp` again after a restart or `ATTACH`
- Rebalance the work after File, URL and object storage reads with at least as many files as threads
- docs: document IP access list JSON import for Managed Postgres (FR-77)
- Tests for Iceberg maintenance, nanosecond timestamps and vended credentials refresh
- Correlated EXISTS with an equality on an expression over outer columns (`b.i3 + b.i4 = a.i3 + a.i4`) is not substituted: DISTINCT plus two joins and a second read of the outer table, 3-6x slower than the semi join
- Re-added projection reads stale part from pending DROP PROJECTION
- Projection over a column dropped and re-added in one ALTER serves stale values
- `COPY TO STDOUT` writes `Bool` as `true`; self-connected `postgresql` read fails
- `COPY TO` escapes zero bytes as `\0`, self-connect reads them back as `0`
- Schema inference from PostgreSQL ≤13 fails with array_position error
- Docs
- C++ not yet supported