clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Alias named like a function with an access check fails with ACCESS_DENIED
- Failed merge does not stop its other in-flight S3 reads
- `role_arn` AssumeRole calls nonexistent STS host in eusc/cn regions
- Read the Graphite rollup columns for FINAL
- `set` index drops matching granules: rebound `indexHint` alias bound by name
- GROUPING SETS HAVING loses primary-key pruning after #126219
- Build with libc++ `EXTENSIVE` hardening
- Make the remembered verdict of `05324_adaptive_aggregator_disable_thaw` independent of how `numbers_mt` splits rows
- Bound each docker-library test run in the Docker image jobs
- Join reordering costs a many-to-many join as a key lookup when NDV statistics are missing: TPC-H Q5 times out on repeat runs
- Docs
- C++ not yet supported