clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- obfuscateQuery: expose stateful/batch obfuscation (the only consistent + collision-free mode is a single pass, which doesn't scale)
- Add profile events for query analysis, query tree, and planning durations
- Fix wrong ORDER BY for LowCardinality(Float) with NaN in read-in-order
- Backport #105579 to 26.3: Fix nullptr deref in CREATE TABLE TO INNER UUID without ENGINE
- Fix text index fallback for failing preprocessor casts
- Metamorphic equivalence violation in HAVING clauses due to buggy partition pruning on NaN values
- TLP partitioning over a mixed `RIGHT JOIN` + comma join tree can produce rows from an empty result set
- [CI crash] Sorting transform failed during chunk processing
- Accept ROW(...) as a SQL-standard alias for Tuple(...)
- ci: set least-privilege permissions on workflow token
- Docs
- C++ not yet supported