clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix the one-argument `merge` table function reading the default database of other servers in distributed queries
- Reject a tuple or map value of a dictionary source parameter
- Fix `x IN cte` in distributed queries when the CTE is a `UNION` or is declared `MATERIALIZED`
- Keep `Dynamic` values of different types apart in the insert deduplication hash
- Write every file of an inserted part with the query's write settings
- Use AI to triage CI failures in PRs
- Evaluate the `DEFAULT` of a column added to a `Memory` table for the rows inserted before the `ALTER`
- UNIQUE KEY: delete
- Fix reading structs inside Array and Map from column-mapped Delta Lake tables
- Fix `set` and `text` skip indexes dropping rows for conditions with non-deterministic functions
- Docs
- C++ not yet supported