clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- formatReadableTimeDelta prints '0 seconds and' before smaller units
- roundToExp2(nan) returns inf
- Do not print zero seconds before smaller units in formatReadableTimeDelta
- Return NaN from roundToExp2 for NaN
- Read subcolumns used in projection expressions from their parent columns on insert
- Write JSON paths in sorted order in binary serialization of a row
- Do not parse non-date strings into an existing DateTime variant of Dynamic
- Do not insert defaults for null into an existing Dynamic variant
- Use a token bloom filter index on lowerUTF8 for hasTokenCaseInsensitive
- Cherry pick #127416 to 26.10: Fix `Cannot fold actions for projection` when the join order optimizer reorders an outer join converted to INNER
- Docs
- C++ not yet supported