clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Logical error: Coordination mode mismatch for stream A: got B, expected C (STID: 6117-68e9)
- Accept `ARRAY[…]` array constructor as alias for `[…]`
- `<expr> = ALL (<empty subquery>)` should return TRUE (vacuous truth)
- Accept `ROW(name type, …)` as an alias for `Tuple(name type, …)` in type expressions
- RFC: Best-Effort Partitioned Hash Join
- Support PostgreSQL-compatible ARRAY[...] syntax as sugar for [...]
- Parquet: map TIME logical type to Time64
- Constant filter folding under materialize
- DeltaLake: Use new create table transaction
- Avro: map TIME_MILLIS / TIME_MICROS to ClickHouse Time64
- Docs
- C++ not yet supported