clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add system.changelog table and changelog CSV generator
- UNIQUE KEY: the transaction layer
- Keep the fraction when a float is added to a DateTime64 or a Time64
- Pushed external roles (push_external_roles_in_interserver_queries) are lost when the remote query reads through a normal VIEW
- Fix undefined behavior serializing a Time64 holding the smallest Int64
- Remove a table's named-collection dependency only after its metadata is dropped
- Fix an endless loop in ColumnGathererStream when a gather source is exhausted
- Check access to the source table in the MergeTree introspection table functions
- JSONExtract on JSON-typed input still ignores cast_string_to_date_time_mode
- Recursive CTE with a self-join branch hangs instead of failing with TOO_DEEP_RECURSION (Thread Sanitizer)
- Docs
- C++ not yet supported