clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix `TTL ... GROUP BY ... SET` with an expression or a subcolumn as an aggregate function argument
- Fix reading a tuple element inside an array from Iceberg Parquet files with field ids
- Bump `wasmtime` from v45.0.1 to v50.0.1
- Keep `ASTViewTargets` children in the formatted order, whatever the order of the TimeSeries target clauses
- Keeper: collect histogram family pointers on first use
- Mark-cache entries of JSON dynamic-path streams are never removed when a Wide part is destroyed (26.3 LTS – 26.10)
- Use the page cache and the distributed cache for object storage reads by default
- Casting `JSON` to another `JSON` type shifts a typed `DateTime` path when its type and time zone both change, also in `ALTER TABLE ... MODIFY COLUMN`
- Fix deadlock in ProcessList::killAllQueries with distributed query plans
- Hoist raw pointers out of the row loop of `FunctionMultiIf::executeInstructionsColumnar`
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- C++ not yet supported