clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix wrong `ORDER BY ... LIMIT` results over a subquery that redefines a table column
- Enable `modernize-use-nodiscard` clang-tidy check
- Fix set operations, query parameters and view tables inside an `APPLY` lambda
- Parquet v3 reader: speculative coalescing can read 10–30× more than needed on selective queries
- `clickhouse-client` should prefer SQL-level `FORMAT` over config file
- Fix(String): Reject out-of-range UInt64 slice arguments
- RFC: Compression codecs for subcolumns
- Make `modulo` give the same result for constant and column divisors
- ARM ThinLTO: `SerializationString::serializeBinaryBulk` up to 1.5x slower
- Fix wrong results of `IN (subquery)` and `has` for `Interval` values of different units
- Docs
- C++ not yet supported