clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Promote committed orphans in refreshDataPartsOnce for rolled-back parts
- Fix optimize_skip_unused_shards on global distributed joins with shared column names
- Fix optimize_distributed_group_by_sharding_key wrong result for JOIN
- Add ID functions: base62, TypeID, and PrefixedIDs (Stripe-style ID)
- Fix UNKNOWN_IDENTIFIER reading/merging a projection when a late-added column default references a non-stored column
- Fix float-to-integer overflow in quota max value parsing
- Fix ReadBuffer-canceled abort in GraceHashJoin spilled-block reader
- Packed backup format
- Fix data race on DataTypeAggregateFunction version during Native serialization
- Workload scheduling: oom_score query setting to control memory reservation eviction order
- Docs
- C++ not yet supported