clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix heap-use-after-free in `executeAggregateMultiply` self-merge
- Aggregate function combinators: TOTALS and BY (scaffolding for ORDER BY)
- CI: split Bugfix Validation Check into per-arch + final aggregator
- `Int32` exponent overflow in `parseDecimal` causes SAMPLE ratio to silently become 1
- `tuple` with `enable_named_columns_in_function_tuple` creates named tuples that silently lose data on CAST/INSERT to differently-named tuple types
- [CI crash] Failed to validate version metadata during data part load
- `--backslash` mode silently drops INSERT VALUES data in `clickhouse-format`
- [26.3.9.8] Subquery over clusterAllReplicas returns different results depending on selected outer columns
- Speed up minmax index evaluation
- Fix KQL parser depth and backtracks counter propagation
- Docs
- C++ not yet supported