clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix `system.all_query_log` failing with `TYPE_MISMATCH` after an upgrade to 26.10
- Do not consider a `Replicated` database replica lost because one of its tables failed to load
- Combine the filters of `PREWHERE` steps when the later conditions cannot throw
- Fix geometry functions returning empty results for rows after an empty `MultiPolygon` or `MultiLineString`
- Fix merges of parts in which no row passes the `WHERE` of a projection
- Build silk fibers and `librseq` under musl
- Remove old deduplication blocks in batches of `TryRemove`
- Fix Iceberg filters on a column name that an older data file used for another column
- Decide comparisons of constants behind `materialize` in the row estimate
- Fix `s3Cluster` storing the type's default value for a `DEFAULT` that reads a column whose own `DEFAULT` is not sent
- Docs
- C++ not yet supported