clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- [DISCUSS] Rewriting IColumn interface using microsoft proxy library to subsitute inheritance and virtual functions
- Send time zone in `update_field` for HTTP source of dictionaries
- JSON_VALUE function stop working in ClickHouse 24
- avg(bigint) returns incorrect result when overflow
- Setting `parallel_distributed_insert_select=2` is not always executing `INSERT SELECT` on all hosts
- GLOBAL IN/IN different results for double-distributed IN subquery
- Protection of incorrect configuration of Keeper
- Enhancements for parallel replicas protocol
- L2Distance fails with "Arguments of function arrayL2Distance have different array sizes" after migrating from 24.1.4.20 to 24.2.1.2248
- Analyzer: Do not execute scalar subqueries when `SelectQueryOptions::only_analyze` is set
- Docs
- C++ not yet supported