clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- Flag `max_replicated_table_num_to_warn`
- <lifetime> does not reload executable_pool UDFs when the underlying script changes
- Proposal: Integrate Blosc2, ZFP, and ZipNN as native compression codecs for numerical arrays
- Fix scale error in exception message of parseDateTime64InJodaSyntax
- fix(ci): Split the PromQL compliance comment hook into an isolated job because it requires GH auth.
- `canFallbackToStringReplacement` allows fallback even when replacement contains `\0` substitution reference
- `tryOptimizeAndEqualsNotEqualsChain` loses type info when converting notEquals chain to NOT IN, causing wrong results with Date columns
- `dictionary_validate_primary_key_type` rejects `LowCardinality(UInt64)` due to missing `removeLowCardinality` unwrap
- Preserve LowCardinality in nested() and ARRAY JOIN over Nested columns
- Iceberg: prune manifest files at the manifest-list level using the partitions summary
- Docs
- C++ not yet supported