firehose/aws.sdk.kotlin.services.firehose.model/OrcSerDe/Builder

Builder

Properties

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.

bloomFilterColumns

var bloomFilterColumns: List<String>?

The column names for which you want Firehose to create bloom filters. The default is null.

bloomFilterFalsePositiveProbability

var bloomFilterFalsePositiveProbability: Double?

The Bloom filter false positive probability (FPP). The lower the FPP, the bigger the Bloom filter. The default value is 0.05, the minimum is 0, and the maximum is 1.

compression

var compression: OrcCompression?

The compression code to use over data blocks. The default is SNAPPY.

dictionaryKeyThreshold

var dictionaryKeyThreshold: Double?

Represents the fraction of the total number of non-null rows. To turn off dictionary encoding, set this fraction to a number that is less than the number of distinct keys in a dictionary. To always use dictionary encoding, set this threshold to 1.

enablePadding

var enablePadding: Boolean?

Set this to true to indicate that you want stripes to be padded to the HDFS block boundaries. This is useful if you intend to copy the data from Amazon S3 to HDFS before querying. The default is false.

formatVersion

var formatVersion: OrcFormatVersion?

The version of the file to write. The possible values are V0_11 and V0_12. The default is V0_12.

paddingTolerance

var paddingTolerance: Double?

A number between 0 and 1 that defines the tolerance for block padding as a decimal fraction of stripe size. The default value is 0.05, which means 5 percent of stripe size.

rowIndexStride

var rowIndexStride: Int?

The number of rows between index entries. The default is 10,000 and the minimum is 1,000.

stripeSizeBytes

var stripeSizeBytes: Int?

The number of bytes in each stripe. The default is 64 MiB and the minimum is 8 MiB.