clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Remove keeper rocksdb storage
- Fix signed integer overflow in RefreshTask attempt log_comment
- More KeeperStorage refactoring
- Fix executable UDF command parameter validation
- Fix performance regression for Map subcolumns with PREWHERE
- Fix data race on the packed skip-indices archive reader
- Set Keeper component for external MergeTree storages
- UNIQUE KEY: interim safety guards for unsupported operations
- Add JIT compilation for a subset of simple regular expressions
- `set` skip index stops pruning granules for function predicates over `LowCardinality` columns
- Docs
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