clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Type deduction breaks for tuples in CASE with default ELSE
- Unexpected behavior of the JSONExtractArrayRaw
- Allow SELECT * when using RBAC and Row level Filters
- Support nested fields in MongoDB dictionaries
- Memory usage is larger than needed.
- Push down GROUP BY into subqueries with Distributed tables
- Ensure config under config.d/users.d are read in some deterministic order
- Automagically apply some functions to columns in WHERE, if func(column) present in PK
- Synchronous mode of distributed INSERTs with fallback to asynchronous mode.
- Allow to execute ALTER MODIFY type of key column if the type is expanded.
- Docs
- C++ not yet supported