clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add settings for SQL compatible behaviour of `SEMI` and `ANTI` joins
- Enable CREATE TABLE <new_table> AS <source_table> [ON CLUSTER '{CLUSTER}'] to implicitly set the Replication path to name of new_table
- Fix hang in `--queries-file` / `-q` when stdin is a pipe with no data
- Change SSM parameter
- MergeTree table setting refresh_parts_interval has unexpected/undocumented behavior
- Idea: add `port_offset` configuration parameter
- LazilyReadFromMergeTree optimization is disabled when selecting ALIAS columns
- Tune performance test query timings to target 100-200ms on CI
- `Unknown table expression identifier` starting from 26.1.1 release
- If the index expression can't be false on a granule, treat it as `1` to avoid recalculation
- Docs
- C++ not yet supported