clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix issue with the write to Iceberg via the glue catalog
- Lazy materialization nondeterministic defaults
- perf(promql): Defer the metric-name drop to the consumer of the vector.
- Cache the dynamic paths mapping in `ColumnObject::insertFrom` to speed up merges of `JSON` columns
- Improve parquet small string decoding
- Add ProfileEvents for S3 credential fetches
- Retry an Azure native copy refused with 401 as one `Put Blob From URL`
- 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
- Docs
- C++ not yet supported