clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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Help out
- Issues
- Support for `CREATE OR REPLACE MATERIALIZED VIEW`
- Avoid pure-virtual abort during MergeTree destruction race (STID 3631-4165)
- Add optimize_row_order_if_no_order_by (reopen #103919)
- Investigate partitioned-build, streamed-probe variant of ConcurrentHashJoin
- Add regression test for DateTime64 zero over remote() (issue #71288)
- Do not lift `arrayJoin` above `SortingStep` (issue #82279)
- Fix row drop in parallel reads of `Map` primary key with bucketed serialization
- Introduce Partition Constants Substitution During Index Analysis
- Add `--chime` option for ASCII BEL on slow query finish (issue #92718)
- Add functions arrayTopK and arrayBottomK
- Docs
- C++ not yet supported