clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Build silk fibers and `librseq` under musl
- Remove old deduplication blocks in batches of `TryRemove`
- Fix Iceberg filters on a column name that an older data file used for another column
- Decide comparisons of constants behind `materialize` in the row estimate
- Fix `s3Cluster` storing the type's default value for a `DEFAULT` that reads a column whose own `DEFAULT` is not sent
- Paimon: primary-key tables are unreadable, merge-on-read is not implemented
- Tag 05339_parquet_top_k_string_statistics as no-parallel
- TTL `GROUP BY ... SET` with an expression as an aggregate argument fails every merge with `NOT_FOUND_COLUMN_IN_BLOCK`
- Text index: speed up keep-set postprocessor with a bloom filter
- Send the filled `GLOBAL IN` set to the remote reads of every `UNION ALL` branch
- Docs
- C++ not yet supported