clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- [CI crash] Failed to validate version metadata during data part load
- `--backslash` mode silently drops INSERT VALUES data in `clickhouse-format`
- [26.3.9.8] Subquery over clusterAllReplicas returns different results depending on selected outer columns
- Speed up minmax index evaluation
- Fix KQL parser depth and backtracks counter propagation
- Fix flaky 00825_protobuf_format_map under map-bucket serialization
- Fix KQL parser depth and backtracks counter propagation
- `checkLimits` uses conservative `total_size` for `system.numbers` causing false `TOO_MANY_ROWS` with LIMIT
- Improve best effort timestamp parse - micro and nanoseconds
- `original_console_log_level_config` reads from `logger.startup_console_log_level` instead of `logger.console_log_level`, so the console log level is never restored after startup
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