clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Long projection names gives bad insert errors
- Rebuild subcolumn skip index on ALTER MODIFY COLUMN of the parent
- Keep a direct read from a text index local in plan-based parallel replicas
- Fix `windowFunnel` `strict_increase` repeated subchains
- Parallelize delete manifests reads
- Improve canceling queries in nested expression functions in FilterTransform
- Reject WITH FILL bounds that do not fit the ORDER BY column type
- Observe query cancellation in the distributed connection retry loop
- Allow equality filters with common super type to be merged into joins
- Fix `bloom_filter` over-pruning for a wide string constant
- Docs
- C++ not yet supported