Class: Aws::Firehose::Types::ParquetSerDe

Inherits:

Struct

• Object
• Struct
• Aws::Firehose::Types::ParquetSerDe

Includes:

Structure

Defined in:

lib/aws-sdk-firehose/types.rb

Overview

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

[1]: parquet.apache.org/docs/

See Also:

• AWS API Documentation

Constant Summary

SENSITIVE =

[]

Instance Attribute Summary

• #block_size_bytes ⇒ Integer

  The Hadoop Distributed File System (HDFS) block size.

• #compression ⇒ String

  The compression code to use over data blocks.

• #enable_dictionary_compression ⇒ Boolean

  Indicates whether to enable dictionary compression.

• #max_padding_bytes ⇒ Integer

  The maximum amount of padding to apply.

• #page_size_bytes ⇒ Integer

  The Parquet page size.

• #writer_version ⇒ String

  Indicates the version of row format to output.

Instance Attribute Details

#block_size_bytes ⇒ Integer

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.

Returns:

• (Integer)

# File 'lib/aws-sdk-firehose/types.rb', line 3634

class ParquetSerDe < Struct.new(
  :block_size_bytes,
  :page_size_bytes,
  :compression,
  :enable_dictionary_compression,
  :max_padding_bytes,
  :writer_version)
  SENSITIVE = []
  include Aws::Structure
end

#compression ⇒ String

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.

Returns:

• (String)

# File 'lib/aws-sdk-firehose/types.rb', line 3634

class ParquetSerDe < Struct.new(
  :block_size_bytes,
  :page_size_bytes,
  :compression,
  :enable_dictionary_compression,
  :max_padding_bytes,
  :writer_version)
  SENSITIVE = []
  include Aws::Structure
end

#enable_dictionary_compression ⇒ Boolean

Indicates whether to enable dictionary compression.

Returns:

• (Boolean)

# File 'lib/aws-sdk-firehose/types.rb', line 3634

class ParquetSerDe < Struct.new(
  :block_size_bytes,
  :page_size_bytes,
  :compression,
  :enable_dictionary_compression,
  :max_padding_bytes,
  :writer_version)
  SENSITIVE = []
  include Aws::Structure
end

#max_padding_bytes ⇒ Integer

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.

Returns:

• (Integer)

# File 'lib/aws-sdk-firehose/types.rb', line 3634

class ParquetSerDe < Struct.new(
  :block_size_bytes,
  :page_size_bytes,
  :compression,
  :enable_dictionary_compression,
  :max_padding_bytes,
  :writer_version)
  SENSITIVE = []
  include Aws::Structure
end

#page_size_bytes ⇒ Integer

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.

Returns:

• (Integer)

# File 'lib/aws-sdk-firehose/types.rb', line 3634

class ParquetSerDe < Struct.new(
  :block_size_bytes,
  :page_size_bytes,
  :compression,
  :enable_dictionary_compression,
  :max_padding_bytes,
  :writer_version)
  SENSITIVE = []
  include Aws::Structure
end

#writer_version ⇒ String

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

Returns:

• (String)

# File 'lib/aws-sdk-firehose/types.rb', line 3634

class ParquetSerDe < Struct.new(
  :block_size_bytes,
  :page_size_bytes,
  :compression,
  :enable_dictionary_compression,
  :max_padding_bytes,
  :writer_version)
  SENSITIVE = []
  include Aws::Structure
end