clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Too frequent execution of information_schema.tables to fetch MySQL database engine table metadata changes.
- Namespace filter for DataLakeCatalog
- Logical error: Cannot convert nested result of function A with type B to the expected result type C: D (STID: None)
- Granular control over echoed queries in CLI
- UndefinedBehaviorSanitizer: undefined behavior (STID: 3589-3ecb)
- Can't coalesce Nullable(Decimal) and Float64: no supertype
- Code: 735. DB::Exception: Received 'Cancel' packet from the client, canceling the query.
- INSERT SELECT with UNION ALL and JOIN writes incorrect String values in MergeTree
- Extend "source filter grants" support to additional source types (especially REMOTE)
- CORS header disallows progress updates in HTTP interface
- Docs
- C++ not yet supported