clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Read a hive partition key named `_headers` in file-like storages
- Reject an Iceberg INSERT that writes a column the table no longer has, for every format
- Normalize counts of eligible non-nullable stored columns
- Feat(Local): Allow --queries-file with --query
- Support `COLLATE` in the `GROUP BY` top-K optimization
- Fix memory usage degradation of window functions with the analyzer
- Fix CREATE TABLE AS on a cluster when the source is not on the initiator
- Don't load statistics when the primary key leaves a small read
- Iceberg: MERGE INTO for Iceberg tables
- Iceberg: whole-table overwrite (INSERT OVERWRITE / CREATE OR REPLACE TABLE ... AS)
- Docs
- C++ not yet supported