clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add integration tests pinning down SQL injection via PostgreSQL pushdown
- `KILL MUTATION` fails with `SYNTAX_ERROR` on commands mangled by masking rules
- Default value instead of exception in insert...select
- Fix `INSERT SELECT` storing the column default for a non-NULL value that cannot be converted
- Count distinct bytes in `stringBytesUniq` without a per-row stack bit mask
- Allow aggregate functions that don't support `Variant` to be applied to `Variant` arguments
- Read a single local Parquet file by several sources in parallel
- Store BM25 scoring data in text indexes with `scoring = 'bm25'`
- Run the Darwin fast test within a time budget set by the macOS runner queue
- Fix wrong values and a crash when a stored column is named like a split PREWHERE expression
- Docs
- C++ not yet supported