clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- JSONEachRow fails with "Duplicate field found" after upgrade to 26.8
- Enable query_plan_lower_array_join_function by default
- Do not claim injectivity for a function that collapses varying arguments to `Nothing`
- Do not treat a key range as exact when the constant is a signed zero
- Do not hoist a constant out of an aggregate when it truncates into a `Decimal`
- Propagate the output order of a full sorting merge join
- Feat(PromQL): Implement /api/v1/status/tsdb
- Require a join subquery alias only when an identifier is actually ambiguous
- Send the definer identity to remote shards from SQL SECURITY DEFINER views without an invoker
- Do not move AI functions to PREWHERE
- Docs
- C++ not yet supported