clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix(Formats): Preserve column diagnostics without trailing newline
- Fix(DateTime): Reject non-digit fixed-width parseDateTime fields
- Fix the global memory tracker going negative after a refused allocation over `max_server_memory_usage`
- `mayFixColumn` ignores single-element `IN`: parallel replicas `LOGICAL_ERROR`
- Type-only MODIFY COLUMN on EPHEMERAL column keeps stale default until reload
- MODIFY COLUMN ... NULL EPHEMERAL default changes after DETACH/ATTACH
- New all-skipped throw breaks `schema_inference_mode = 'union'` over Arrow files
- Support AWS Signature Version 4 authentication in the HTTP interface for S3-compatible clients
- `RESTORE ... PARTITIONS` refusal runs after `CREATE`: table left with all data
- Fix union schema inference over Arrow files when one file has only skipped columns
- Docs
- C++ not yet supported