clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Iceberg: Selecting from ARRAY column with dot-separated name returns empty lists
- RFC: Enable NuRaft Streaming Mode in ClickHouse Keeper
- Better performance of applying skip indexes and projections on data read from object storage
- Potential issue: CREATE OR REPLACE TABLE requires privileges on internal temporary table
- Race condition on `StorageObjectStorageConfiguration::(get/set)Paths`
- `parseGlobs` improvements
- Lazy materialization does not work in combination with FINAL?
- QUERY_WAS_CANCELLED_BY_CLIENT
- Inconsistent behavior of ALTER MODIFY COLUMN DEFAULT on missing columns after OPTIMIZE FINAL
- [CI crash] Query execution failed in TCP handler
- Docs
- C++ not yet supported