clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- More settings to randomize
- Break symlink loops in StorageFile glob expansion
- Add per-part type narrowing for Dynamic columns (statistics-based, opt-in v4)
- Skip granules consumed by OFFSET when reading in order
- Fix text index fallback for failing preprocessor casts
- TLP partitioning over a mixed `RIGHT JOIN` + comma join tree can produce rows from an empty result set
- Fix vacuous truth for x op ALL (empty subquery)
- Add processor memory delta to processors profile log
- Correlated subquery with `group_by_use_nulls = 1` and `WITH ROLLUP/WITH CUBE` causes logical error
- Fix SYSTEM SYNC MERGES hanging when a scheduled part does not exist
- Docs
- C++ not yet supported