clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix(Iceberg): Respect Iceberg gc.enabled for garbage collection
- Refuse a cross-table partition clone that would silently drop an unapplied `RENAME`/`DROP COLUMN`
- Hide secret function arguments in EXPLAIN when the value comes from another plan step
- Bound HTTP request body decompression and multipart form size
- Refuse RENAME DATABASE for S3Queue/AzureQueue tables whose keeper_path expands {database}
- Bound the Keeper disk mover's retries once the server is running
- Perf(String): Speed up jaroSimilarity / jaroWinklerSimilarity with NEON
- LDAP: `exclude_users` for the `ldap` user directory
- LDAP: map `memberOf` group DNs to roles with `rdn_attribute` and a `groups` allow-list
- N mutually exclusive conditional aggregates each evaluate their own condition and update their own state for every row: computing them in one scatter state is 13.7% faster on TPC-DS query_02
- Docs
- C++ not yet supported