clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix UNEXPECTED_PACKET_FROM_SERVER on INSERT when a subquery is evaluated during analysis
- Name a `Dynamic` constant's active member type in the shard-facing literal
- Refuse ATTACH AS REPLICATED instead of destroying transaction metadata
- Compare a FixedString map key zero-padded in the map subscript
- Fix exceptions and wrong results of `IN` with `Nullable(Tuple)` and `DateTime64` keys
- Perf(JOIN): Reuse consecutive HashJoin probe results for fixed-width keys
- Add histogramExplicit and histogramExplicitOpenClosed aggregate functions
- Faster implementation of function `extractKeyValuePairs`
- Fix `SELECT * REPLACE`/`APPLY` and positional arguments with `group_by_use_nulls`
- Create IcebergRESTCatalogHandler [1/n]
- Docs
- C++ not yet supported