clickhouse
https://github.com/yandex/clickhouse
C++
ClickHouse is a free analytic DBMS for big data.
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- Issues
- VALUES clause silently produces empty Map when inserting `Map(Float64, V)` into `Map(Float32, V)` column
- Tab width calculation ignores `output_format_pretty_row_numbers` setting, causing incorrect column widths
- STDOUT compression not applied when output format is explicitly specified
- Logical error: 'std::exception. Code: 1001, type: std::out_of_range, e.what() = unordered_map::at: key not found (version 26.5.1.465), Stack trace: (STID: 2508-34fb)
- [CI Proof] `BackupWriterAzureBlobStorage::copyFile` destination path missing `blob_path` prefix
- Trailing comma in VALUES fails for expressions because `parseExpression` token check expects only `ClosingRoundBracket`
- SQL comments before semicolon in VALUES format break multi-query splitting, swallowing subsequent queries
- InsertDependenciesBuilder: Table 'xxx' is not a source for view 'yyy' anymore, current source is 'zzz' spam after using multiple Materialized Views to same target (26.x)
- Speed up jaroSimilarity / jaroWinklerSimilarity with AVX2
- Revert "Revert "Parallelize reads from a single Parquet file in StorageFile""
- Docs
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