clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add a TOLERANCE clause to ASOF JOIN
- Do not delete staged Iceberg files when a catalog commit outcome is unknown
- Add ALP encoding support for Parquet
- Extend adaptive codec selection to all types
- Infer a physically nullable Parquet struct as Nullable(Tuple)
- Document that JSON parsing requires valid UTF-8
- Fix singleValueOrNull state serialization
- Reject an array whose elements were not read outside the MergeTree readers
- Take the Cascades planning node count from the plan, not the ambient context
- Add with_source parameter to the JSON type storing the JSON text in the __source sub-column
- Docs
- C++ not yet supported