clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add StringZilla-based asciiCJK_v2 tokenizer
- Fix hang when dropping a Refreshable Materialized View during refresh planning
- Reject shorthand setting changes carrying a value for the whole query tree
- merge_table_large_query +33% — planning over Merge tables became O(nodes × child tables) in 26.7
- TTLDrop short-circuit populates text_indexes_to_merge but never builds their transforms, so MergeTextIndexStage throws LOGICAL_ERROR for rows-TTL tables with a text index
- Fix set index on an expression with a Nullable operand
- Docs: remove obsolete Managed Postgres credential redaction dates
- Docs: duplicates in version history
- Docs: Analyzing and optimizing queries guide
- Report malformed Parquet thrift metadata as INCORRECT_DATA
- Docs
- C++ not yet supported