clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Support PromQL over a Distributed table of TimeSeries shards
- AST fuzzer oracle suite (1/4): framework + core correctness oracles
- Reject a `RENAME DATABASE` that would make an `Alias` table cyclic
- JOIN runtime filters index analysis : prune the left side by several key ranges instead of one [min, max]
- Stop claiming injectivity for `toString` of a folding date-time and `toFixedString` of a `String`
- Fix lightweight update pruning of empty partitions
- Make a `LowCardinality` argument transparent to the KQL `/`, `bin` and `bin_at`
- Fix wrong result from `optimize_injective_functions_in_group_by` on `toString(x, NULL)`
- Fix the CI infrastructure auto-retry and rerun an infra job in a mixed run
- Fix wrong results when two `DateTime` constants differ only in the time zone
- Docs
- C++ not yet supported