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
- Exclusive S3Queue burns one retry too many: `loading_retries=1` retries zero times
- Exclusive S3Queue: {replica} resolves differently on restart, ingestion stops
- `ALTER RENAME COLUMN` racing with a merge still loses data on `26.3`: `04238_alter_rename_column_merge_race` fails ~12% there and 0% everywhere else
- EXPLAIN AST optimize=1 dumps view-body secrets; SHOW CREATE masks them
- SETTINGS clause does gate `session_query_ids` recording in clickhouse-client
- Part audit uses AllPhysical: an ALIAS-converted column makes the part unreadable
- Killed DROP COLUMN mutation: part refused, reads and merges fail forever
- Trino dialect: `INSERT ... VALUES` applies ClickHouse backslash escapes, `SELECT` does not
- Trino dialect omits `group_by_use_nulls`: ROLLUP/CUBE rows return 0, not NULL
- Trino `array_except` keeps duplicates, `flatten` recurses, `reverse` splits UTF-8
- Docs
- C++ not yet supported