Class: Aws::Glue::Types::DropNullFields

Inherits:

Struct

• Object
• Struct
• Aws::Glue::Types::DropNullFields

Includes:

Structure

Defined in:

lib/aws-sdk-glue/types.rb

Overview

Note:

When making an API call, you may pass DropNullFields data as a hash:

{
  name: "NodeName", # required
  inputs: ["NodeId"], # required
  null_check_box_list: {
    is_empty: false,
    is_null_string: false,
    is_neg_one: false,
  },
  null_text_list: [
    {
      value: "EnclosedInStringProperty", # required
      datatype: { # required
        id: "GenericLimitedString", # required
        label: "GenericLimitedString", # required
      },
    },
  ],
}

Specifies a transform that removes columns from the dataset if all values in the column are 'null'. By default, Glue Studio will recognize null objects, but some values such as empty strings, strings that are “null”, -1 integers or other placeholders such as zeros, are not automatically recognized as nulls.

See Also:

• AWS API Documentation

Constant Summary

SENSITIVE =

[]

Instance Attribute Summary

• #inputs ⇒ Array<String>

  The data inputs identified by their node names.

• #name ⇒ String

  The name of the transform node.

• #null_check_box_list ⇒ Types::NullCheckBoxList

  A structure that represents whether certain values are recognized as null values for removal.

• #null_text_list ⇒ Array<Types::NullValueField>

  A structure that specifies a list of NullValueField structures that represent a custom null value such as zero or other value being used as a null placeholder unique to the dataset.

Instance Attribute Details

#inputs ⇒ Array<String>

The data inputs identified by their node names.

Returns:

• (Array<String>)

# File 'lib/aws-sdk-glue/types.rb', line 9714

class DropNullFields < Struct.new(
  :name,
  :inputs,
  :null_check_box_list,
  :null_text_list)
  SENSITIVE = []
  include Aws::Structure
end

#name ⇒ String

The name of the transform node.

Returns:

• (String)

# File 'lib/aws-sdk-glue/types.rb', line 9714

class DropNullFields < Struct.new(
  :name,
  :inputs,
  :null_check_box_list,
  :null_text_list)
  SENSITIVE = []
  include Aws::Structure
end

#null_check_box_list ⇒ Types::NullCheckBoxList

A structure that represents whether certain values are recognized as null values for removal.

Returns:

• (Types::NullCheckBoxList)

# File 'lib/aws-sdk-glue/types.rb', line 9714

class DropNullFields < Struct.new(
  :name,
  :inputs,
  :null_check_box_list,
  :null_text_list)
  SENSITIVE = []
  include Aws::Structure
end

#null_text_list ⇒ Array<Types::NullValueField>

A structure that specifies a list of NullValueField structures that represent a custom null value such as zero or other value being used as a null placeholder unique to the dataset.

The `DropNullFields` transform removes custom null values only if both the value of the null placeholder and the datatype match the data.

Returns:

• (Array<Types::NullValueField>)

# File 'lib/aws-sdk-glue/types.rb', line 9714

class DropNullFields < Struct.new(
  :name,
  :inputs,
  :null_check_box_list,
  :null_text_list)
  SENSITIVE = []
  include Aws::Structure
end