clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix row drop in parallel reads of `Map` primary key with bucketed serialization
- Introduce Partition Constants Substitution During Index Analysis
- Add `--chime` option for ASCII BEL on slow query finish (issue #92718)
- Add functions arrayTopK and arrayBottomK
- Settings-only ALTER on `MergeTree` with `SimpleAggregateFunction` in ORDER BY fails unexpectedly
- RESTORE leaves orphan empty table after mid-restore crash
- Text index: support arrayExists and arrayAll
- `Date` type values > 32767 days (after 2059-09-18) corrupted in ORC output due to `Int16` overflow
- Fix bucket-aware merging dropped by analyzer with ARRAY JOIN over remote source
- `isNullable` returns 0 for constant Dynamic/Variant but 1 for non-constant - inconsistent constant folding
- Docs
- C++ not yet supported