clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Reading a view whose body has two `ARRAY JOIN`s fails with `NOT_IMPLEMENTED` since 26.8
- Parquet `INT96` read as `DateTime64(6)` under `saturate` clamps to 1677/2262
- Filter shipped to cluster replicas reverses AND conjunct order
- `*Cluster` aggregation drops groups when `HAVING` filters a `GROUP BY` key
- UNKNOWN_FUNCTION on repeated run of cluster join with lambda filter
- Pushed-down filter on cluster functions runs before the subquery's own WHERE
- Report cyclic aliases as `CYCLIC_ALIASES` error instead of `UNKNOWN_IDENTIFIER`
- Fix parseDateTimeBestEffortUS for a day followed by a month name
- Table-function anchor check skips MV/View unwrap: rows returned once per replica
- `RIGHT JOIN` gate skips table-function check: `unknown stream` `LOGICAL_ERROR`
- Docs
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