clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix LOGICAL_ERROR 'Cannot add simple transform to empty Pipe' in ReadFromMergeTree::readInOrder
- Make Context::clearCaches defensive against uninitialized caches
- Fix flaky 01293_show_clusters: lower log level in DatabaseReplicated::tryGetCluster
- Drivers for executable user-defined functions
- Support Iceberg tables in Unity Catalog and Delta Lake tables in Glue Catalog
- Fix LimitTransform WITH TIES assertion on empty virtual-row chunk
- Parallelize Iceberg delete-manifest processing
- Prefetch manifest file in SingleThreadedIcebergIterator
- Backport #104738 to 26.2: Initialize data lake metadata before OPTIMIZE / ALTER on attach
- Fix "Empty query" when running with cursor past the only `;` in play.html
- Docs
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