clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- optimize_read_in_order doesn't utilize min-max indices for sorting order
- select from s3 get stuck when having list wildcard in path
- `select toDateTime64(Inf, 6)` throw exception even if `date_time_overflow_behavior` is 'ignore'
- enum_column = 'non_existing_value' will be considered as always false.
- Integration test `test_role/test.py::test_roles_cache` has failed with strange error
- Fix getArgumentsThatAreAlwaysConstant of function toDateTime64
- Clickhouse server sent out TBs of data per hour
- TTLDeleteMerge + Merge + node restart = Part ... intersects next part (24.3)
- Lost JOIN values with GROUP BY Nullable column WITH ROLLUP and JOIN on LowCardinality column
- Implement Query Condition Cache
- Docs
- C++ not yet supported