AWSFirehoseParquetSerDe

Objective-C

@interface AWSFirehoseParquetSerDe

Swift

class AWSFirehoseParquetSerDe

A serializer to use for converting data to the Parquet format before storing it in Amazon S3. For more information, see Apache Parquet.

  • The Hadoop Distributed File System (HDFS) block size. This is useful if you intend to copy the data from Amazon S3 to HDFS before querying. The default is 256 MiB and the minimum is 64 MiB. Firehose uses this value for padding calculations.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable blockSizeBytes;

    Swift

    var blockSizeBytes: NSNumber? { get set }

  • The compression code to use over data blocks. The possible values are UNCOMPRESSED, SNAPPY, and GZIP, with the default being SNAPPY. Use SNAPPY for higher decompression speed. Use GZIP if the compression ratio is more important than speed.

    Declaration

    Objective-C

    @property (nonatomic) AWSFirehoseParquetCompression compression;

    Swift

    var compression: AWSFirehoseParquetCompression { get set }

  • Indicates whether to enable dictionary compression.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable enableDictionaryCompression;

    Swift

    var enableDictionaryCompression: NSNumber? { get set }

  • The maximum amount of padding to apply. This is useful if you intend to copy the data from Amazon S3 to HDFS before querying. The default is 0.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable maxPaddingBytes;

    Swift

    var maxPaddingBytes: NSNumber? { get set }

  • The Parquet page size. Column chunks are divided into pages. A page is conceptually an indivisible unit (in terms of compression and encoding). The minimum value is 64 KiB and the default is 1 MiB.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSNumber *_Nullable pageSizeBytes;

    Swift

    var pageSizeBytes: NSNumber? { get set }

  • Indicates the version of row format to output. The possible values are V1 and V2. The default is V1.

    Declaration

    Objective-C

    @property (nonatomic) AWSFirehoseParquetWriterVersion writerVersion;

    Swift

    var writerVersion: AWSFirehoseParquetWriterVersion { get set }