clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- ENGINE = Backup storage policy key ignores the resolved destination, so ALTER NAMED COLLECTION between DROP and recreate silently reads the old backup
- Add a new "private preview" feature tier
- Enable parser memory check in PR CI
- Support updating projection settings without forcing immediate re-materialization - ALTER TABLE ... MODIFY PROJECTION
- Docs: correct use_persistent_processing_nodes description in S3Queue
- Paimon primary-key tables silently return duplicate/stale rows: no merge-on-read, primary keys ignored
- Fix `JSONAllValues` text index probe coercion
- Fix division by zero in `ReadFromMergeTree` when `StorageMerge` truncates the number of streams
- Docs: split CREATE TABLE page into codec, temporary table and REPLACE TABLE subpages
- Rename `allow_experimental_adaptive_codec_selection` to `enable_adaptive_codec_selection`
- Docs
- C++ not yet supported