clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Use the `text` index for `arrayJoin(col) = const` and `arrayJoin(col) [GLOBAL] IN (set)`
- Fix reverse DNS lookup spinning forever when the DNS port is unreachable
- Send `UUID` keys of the Cassandra dictionary source as CQL UUID constants
- Fix flaky test `test_broken_projections/test.py::test_broken_ignored_replicated`
- Cherry pick #120582 to 26.3: Require `READ ON FILE` for `ATTACH TABLE ... FROM` a directory in `user_files`
- Cherry pick #120582 to 26.8: Require `READ ON FILE` for `ATTACH TABLE ... FROM` a directory in `user_files`
- Backport #120582 to 26.9: Require `READ ON FILE` for `ATTACH TABLE ... FROM` a directory in `user_files`
- Add profile events for rows processed by compiled and interpreted functions
- Compile comparisons of date and time types
- Compile PREWHERE and row-level filters with the JIT
- Docs
- C++ not yet supported