clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Allow OAuth token exchange without client_id for REST Iceberg catalog (Snowflake Polaris)
- Shared-ptr copy (not clone) of IN first argument at line 616 causes `NOT_FOUND_COLUMN_IN_BLOCK` for multi-column tuple IN inside IF
- `front()` in `buildQueryPlanForJoinNodeLegacy` uses raw first-table column as left join key instead of resolved USING column for chained FULL JOINs
- simhash family of functions uses only 32 bits off the 64 bits space
- `getFilteredTables` detached path omits `uuid_column` population, causing `LOGICAL_ERROR` on `system.detached_tables WHERE uuid = ...`
- Streamline the controls over background activity of certain table engines
- [CI crash] Failed to locate file in zip archive during backup restore
- `isNotDistinctFrom` returns inconsistent results for NaN depending on `Nullable` wrapping
- Flaky test: test_read_only_table/test.py::test_restart_zookeeper
- [CI crash] ReplicatedMergeTree checkParts failed during attach
- Docs
- C++ not yet supported