clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- `clickhouse-local`: allow `--queries-file` together with `--query`
- GeoParquet output: write the `bbox` metadata and a bbox covering column
- YAML input format
- Use the resolved LLVM `objcopy` for the Rust symbol scripts
- Text index on a lambda expression: hasAllTokens fails with code 43 when some parts lack the index
- check_broken_links.py flags `{}`-templated URLs as broken links
- system.tables runs SHOW COLUMNS check per row even without DDL columns selected
- `EXPLAIN WHATIF` skips the merged layout under `use_const_adaptive_granularity`
- `<=>`/`IS DISTINCT FROM` on decimals throw DECIMAL_OVERFLOW from an unused cast
- `DROP PARTITION` via `Alias` of a catalog Iceberg table: `LOGICAL_ERROR`
- Docs
- C++ not yet supported