clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Auto-escape XML special characters in from_env config substitutions
- Print invisible characters as escape sequences in Vertical format
- Fix ALTER TABLE MODIFY TTL with DateTime causing data loss on 32-bit overflow
- Support specifying or auto-assigning Parquet field_ids for output columns
- Ask for continuation in single-line mode when query is incomplete
- Add experimental cuckoo_filter and binary_fuse_filter skip indexes
- perf: Avoid Thundering Herd effect for Query Result Cache when running queries in parallel
- Fix `date_time_overflow_behavior` being ignored for integer and float casts to DateTime64/Time64
- [Draft/WIP] Add `h3PolygonToCellsExperimental` function
- Perform skip index filtering before deciding on projection selection
- Docs
- C++ not yet supported