clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Query tags: tags column in system.query_log
- SimpleAggregateFunction with groupUniqArrayArray should support Array(LowCardinality(String))
- Confused result of windowFunnel with mode argument
- Modifying TTL causes distributed DDL to block for a long time
- ClickHouse query running too long time and not exit
- Query MV distributed table failed on v22.3.2.2 but success on v21.8.14.5
- Clickhouse correlated queries/joins with multiple inequalities/between operator
- Can't omit certain projections that make query 100x slower
- Support Nullable types for arrayDifference function
- CREATE OR REPLACE TEMPORARY TABLE does not work
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- C++ not yet supported