clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix LOGICAL_ERROR on premature S3 connection close through the filesystem cache
- Allow 'replicated' tables in replicated database
- Use `HashSet` for aggregations without aggregates
- Reject correlated MATERIALIZED CTE reused in a JOIN at analysis time
- Support for google.protobuf.Timestamp serialisation to and from DateTime
- Fix wrong results for duplicate-ALIAS GROUP BY on a Distributed table under two-level aggregation
- hasAnyTokens/hasAllTokens on Array(String) with a non-splitByNonAlpha text index return wrong results when evaluated row-level (projection or use_skip_indexes = 0)
- Azure SDK Base64Decode global-buffer-overflow on account keys with bytes >= 0x80 (signed-char index of decode table)
- [RFC] Named function arguments
- Wire profiled lock wrappers into FileCache guards to measure contention wait time
- Docs
- C++ not yet supported