clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Restore runtime SIMD dispatch for X86_ARCH_LEVEL below 3
- Add a regression test for `force_primary_key` with the automatic parallel replicas probe
- IN with a Tuple/Array set key rejects unparsable text at default settings
- Perf(Column): Bulk insert repeated JSON values
- Reject a TTL GROUP BY SET assignment that needs a set no TTL merge can build
- Forbid subqueries and table references in text index preprocessor and postprocessor expressions
- Make Npy report the row count its header declares, or fail
- Refuse REPLACE/ATTACH PARTITION FROM a part whose creating transaction has not committed
- Fix NOT_IMPLEMENTED for a direct join with parallel replicas, a Distributed table or a View
- Do not merge an equality chain into IN when the set cannot be built
- Docs
- C++ not yet supported