clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- LEFT/RIGHT/FULL JOIN USING fails with INVALID_JOIN_ON_EXPRESSION when projection alias is constant
- Case-sensitive comparison in lag/lead frame validation allows uppercase LAG/LEAD to bypass frame restriction
- Add hints for builtin /-commands in CLI
- ConstraintsBranch::updateSchedulingSettings does not update FifoQueue's queue_size when max_waiting_queries changes
- simpleJSONExtract functions support for JSON data type
- generateSchemaFileName hex-encodes zeroed buffer instead of actual content
- Missing isVariant check in tuple comparison return type causes LOGICAL_ERROR crash
- Documentation claims default unexpected_quoting_character_strategy is INVALID but code defaults to PROMOTE
- Result overflow should return NULL in function `intDivOrNull`/`moduloOrNull`
- Decimal32 parameter normalization truncates due to divide-before-multiply order
- Docs
- C++ not yet supported