DeprecatedParquetFormatSpecification
class DeprecatedParquetFormatSpecification(val formatType: DeprecatedObjectStorageFormatSpecification.Type = Type.PARQUET) : DeprecatedObjectStorageFormatSpecification
Parquet
Properties
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@JsonPropertyDescription(value = "This is the size of a row group being buffered in memory. It limits the memory usage when writing. Larger values will improve the IO when reading, but consume more memory when writing. Default: 128 MB.")
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@JsonPropertyDescription(value = "The compression algorithm used to compress data pages.")
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@JsonPropertyDescription(value = "There is one dictionary page per column per row group when dictionary encoding is used. The dictionary page size works like the page size but for dictionary. Default: 1024 KB.")
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@JsonPropertyDescription(value = "Maximum size allowed as padding to align row groups. This is also the minimum size of a row group. Default: 8 MB.")
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@JsonPropertyDescription(value = "The page size is for compression. A block is composed of pages. A page is the smallest unit that must be read fully to access a single record. If this value is too small, the compression will deteriorate. Default: 1024 KB.")