clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix uneven shard distribution in StorageCache::shardIndex
- Logical error: There is a race condition between creation and removal of replicated table. It's a bug (STID: 2508-1e6e)
- Throw if privileges for 'SHOW COLUMNS' are missing
- Deprecate allow_experimental_query_deduplication feature
- Fix parseDateTimeBestEffort incorrectly parsing words starting with month prefixes in DD-month-YYYY format
- Fix: filesystem cache disk IO error must not mark MergeTree parts as broken
- [Proof of Concept #92851] For input formats with column names, search columns case-insensitively if there is no ambiguity
- Add a setting to treat `null` values of paths with type hints as absense of the value just like we do for dynamic paths.
- Logical error: Expected file not to exist
- Create an analog of spark "SET TBLPROPERTIES" in Iceberg table
- Docs
- C++ not yet supported