clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add groupBloomFilter aggregate function and bloomFilterContains scalar function
- CROSS JOIN decorrelation path multiplies aggregate values by duplicate count of correlated column values
- Read vectors from part when loading usearch index
- Respect max_http_get_redirects setting in HTTPDictionarySource
- Auto-escape XML special characters in from_env config substitutions
- Print invisible characters as escape sequences in Vertical format
- Fix ARRAY JOIN alias subcolumn resolution in the analyzer
- Fix UNION ALL with duplicate NULL columns causing Block structure mismatch
- Fix datetime parsing consuming characters from adjacent values
- ReservoirSamplerDeterministic::merge() missing self-merge guard (same bug fixed in ReservoirSampler)
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- C++ not yet supported