clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Exception 33 (CANNOT_READ_ALL_DATA) during SELECT
- Error message 'All elements of Enum data type must be of form ...' is not quite accurate
- [RFC] Query plan caching
- Implement vertical insert algorithm for MergeTree
- Has ClickHouse considered or benchmarked row-based sorting vs column-based sorting?
- `if()` rejects float literal with `Decimal` branch: `NO_COMMON_TYPE`
- `stddevSamp` produces `nan` for `n=1` (division by zero) instead of `NULL`
- Improve query performance for compressed posting lists
- Fix: LOGICAL_ERROR in PR with aggregation in order
- Cannot get virtual node `/keeper/config` via `system.zookeeper`.
- Docs
- C++ not yet supported