Class: Aws::Glue::Types::IntegrationPartition

Inherits:

Struct

• Object
• Struct
• Aws::Glue::Types::IntegrationPartition

Includes:

Structure

Defined in:

lib/aws-sdk-glue/types.rb

Overview

A structure that describes how data is partitioned on the target.

See Also:

• AWS API Documentation

Constant Summary

SENSITIVE =

[]

Instance Attribute Summary

• #conversion_spec ⇒ String

  Specifies the timestamp format of the source data.

• #field_name ⇒ String

  The field name used to partition data on the target.

• #function_spec ⇒ String

  Specifies the function used to partition data on the target.

Instance Attribute Details

#conversion_spec ⇒ String

Specifies the timestamp format of the source data. Valid values are:

• ‘epoch_sec` - Unix epoch timestamp in seconds

• ‘epoch_milli` - Unix epoch timestamp in milliseconds

• ‘iso` - ISO 8601 formatted timestamp

<note markdown=“1”> Only specify ‘ConversionSpec` when using timestamp-based partition functions (year, month, day, or hour). Glue Zero-ETL uses this parameter to correctly transform source data into timestamp format before partitioning.

Do not use high-cardinality columns with the `identity` partition

function. High-cardinality columns include:

* Primary keys

• Timestamp fields (such as ‘LastModifiedTimestamp`, `CreatedDate`)

• System-generated timestamps

Using high-cardinality columns with identity partitioning creates

many small partitions, which can significantly degrade ingestion performance.

</note>

Returns:

• (String)

# File 'lib/aws-sdk-glue/types.rb', line 16683

class IntegrationPartition < Struct.new(
  :field_name,
  :function_spec,
  :conversion_spec)
  SENSITIVE = []
  include Aws::Structure
end

#field_name ⇒ String

The field name used to partition data on the target. Avoid using columns that have unique values for each row (for example, ‘LastModifiedTimestamp`, `SystemModTimeStamp`) as the partition column. These columns are not suitable for partitioning because they create a large number of small partitions, which can lead to performance issues.

Returns:

• (String)

# File 'lib/aws-sdk-glue/types.rb', line 16683

class IntegrationPartition < Struct.new(
  :field_name,
  :function_spec,
  :conversion_spec)
  SENSITIVE = []
  include Aws::Structure
end

#function_spec ⇒ String

Specifies the function used to partition data on the target. The only accepted value for this parameter is ‘’identity’‘ (string). The `’identity’‘ function ensures that the data partitioning on the target follows the same scheme as the source. In other words, the partitioning structure of the source data is preserved in the target destination.

Returns:

• (String)

# File 'lib/aws-sdk-glue/types.rb', line 16683

class IntegrationPartition < Struct.new(
  :field_name,
  :function_spec,
  :conversion_spec)
  SENSITIVE = []
  include Aws::Structure
end