clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Allow attach as replicated for Ordinary databases
- Decode compressed marks on demand
- Functions requiring grant
- Add external memory support for LIMIT N BY
- Fix `BAD_ARGUMENTS` for `S3` arguments combining `headers(...)` with a key-value argument
- Parquet spatial-pruning schema walk loops on unvalidated num_children
- Add `EXPLAIN TEXT` for query formatting and pagination rewrites
- Add pin on `make_distributed_plan` tests to disable fallback on local execution
- Add integration tests for wide-row parquet memory over s3()
- Keep an `ARRAY JOIN` filter out of a `Merge` child query
- Docs
- C++ not yet supported