clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Add test: HTTP status code 404 for `UNKNOWN_ROLE` from `?role=` parameter is untested — only response body is grep'd
- Metrics for tracking insertions via materialized view
- Add test: `percent_rank` rejection branch in `WindowFunctionPercentRank::checkWindowFrameType` untested
- Add test: BASIC mode write path for all-NULL `Variant` column (`col.hasOnlyNulls()` branch) untested
- Add test: `SAMPLE` inside a CTE (analyzer) — `sample_size_ratio` clone path untested
- Add test: `User::setName` reserved-prefix check for ` JWT AUTHENTICATION ` marker is untested
- Add test: `formatRow('XML', ...)` over HTTP with `http_write_exception_in_output_format=1` untested — XML branch of the fix has zero coverage
- external-authenticators http add support for role mapping
- Add test: New `BAD_ARGUMENTS` error path for simultaneous `X-ClickHouse-Quota` header and `quota_key` URL parameter is untested
- Honor inferred `Distributed` columns when validating sharding keys
- Docs
- C++ not yet supported