clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- 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
- Runner-wide OOM (OOM in dmesg / Server died) on Stateless test runners, especially arm_asan_ubsan, azure
- Detect when tables behind the query have changed - to improve query cache
- Empty MergeTree tables should be lightweight
- OvercommitTracker: Try to free up memory by evicting cache before terminating queries
- hasAnyTokens/hasAllTokens on Array(String) with a non-splitByNonAlpha text index return wrong results when evaluated row-level (projection or use_skip_indexes = 0)
- ALTER ... MODIFY COLUMN ... SET expr
- spark read data from clickhouse org.apache.hc.core5.http.TruncatedChunkException:Truncated chunk
- Azure SDK Base64Decode global-buffer-overflow on account keys with bytes >= 0x80 (signed-char index of decode table)
- Docs
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