clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- `injectRequiredColumns` filter excludes renamed columns, fallback re-introduces `NO_SUCH_COLUMN_IN_TABLE`
- Shorthand setting syntax accepts unknown setting names due to `castValueUtil` custom settings bypass
- `ASTWindowListElement::definition` not in `children` during parsing — query parameters in named WINDOW definitions are not substituted
- Add SCANN Vector Index Support
- Re-subscribe NATS JetStream pull consumers after a reconnect
- `addRootPath` for `CheckWatchRequest`, `RemoveWatchRequest`, `AddWatchRequest` replaces path with root_path instead of prepending
- `KeeperOverDispatcher::listRecursive` double-registers callback and double-increments xid via redundant manual setup before `pushRequest`
- Add EXPLAIN GRANT / EXPLAIN REVOKE
- Aggregate function combinators: TOTALS and BY
- `tuple` with `enable_named_columns_in_function_tuple` creates named tuples that silently lose data on CAST/INSERT to differently-named tuple types
- Docs
- C++ not yet supported