clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Fix index analysis and reading in order for `toRelativeDayNum`, `toYearNumSinceEpoch` and `toMonthNumSinceEpoch` on the local day 1969-12-31, and for `toString` with a time zone argument
- WASM parser: return `partial_ast` for incomplete queries
- Rewrite the references stored in views on RENAME DATABASE
- Matcher in aliased `USING` key keeps inner `USING` supertype: `LOGICAL_ERROR`
- Outer `USING` alias key reads left column, not inner `FULL`/`RIGHT USING` key
- Bloom-filter skip-index pruning is missed for wrapped `arrayJoin` predicates
- Feat(Map): Add `mapFromEntries` function
- Do not collect exact ranges for a `Tuple` key with a nested `NULL`, add a test for exact `count()`
- Config-load FOR check rejects SQL-created resources, server fails to start
- ORDER BY f DESC LIMIT n with minmax index drops top rows when granule max is nan
- Docs
- C++ not yet supported