clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Check access to a parameterized view when a query resolves it
- Fix `count()` and other queries reading no column from a `Buffer` table over a `Distributed` table
- Docs: text Hyperlink not visible when using dark mode
- Fix `THERE_IS_NO_COLUMN` for `ALIAS` columns of a `Buffer` table over a `Distributed` table
- Use a dense bitset instead of a Bloom filter for JOIN runtime filters on integer keys in a narrow range
- Copy join-key filters onto Parquet reads across equi-joins
- Add readGeoJSON and geoJSON functions
- Make `estimateCompressionRatio` estimate `LowCardinality` columns as stored and add a `target_type` parameter for type changes
- Fix wrong `ROLLUP`/`CUBE` rows for a `group_by_use_nulls` key with a lambda over another key
- Create a new input format for each streamed input unless the format resets all its state
- Docs
- C++ not yet supported