clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- WIP: Projection Index Text
- SQL interface for creating clusters
- Fix leading slash in the data and metadata location for `DataLakeCatalog()`
- where query get outdated version data after prewhere query
- allow_reorder_prewhere_conditions=1 reorders PREWHERE to evaluate JSON predicate first causing slow queries
- Timezone for iceberg timestamptz
- BOM option to s3 insertion
- [#93101]: Fix bad hints suggesting the exact same name
- Add test for concurrent TRUNCATE race condition with stale directories
- Cherry pick #95315 to 25.11: Respect max_parts_to_merge_at_once in TTLPartDropMergeSelector
- Docs
- C++ not yet supported