Array difference

Supported in: Batch, Streaming

Returns all unique elements in the left array that are not in the right array.

Expression categories: Array

Declared arguments

• Left array - no description
  Expression<Array<T>>
• Right array - no description
  Expression<Array<T>>

Type variable bounds: T accepts AnyType

Output type: Array<T>

Examples

Example 1: Base case

Argument values:

• Left array: [ 1, 2, 3 ]
• Right array: [ 2, 3, 4 ]

Output: [ 1 ]

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Example 2: Null case

Argument values:

• Left array: first_array
• Right array: second_array

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Example 3: Edge case

Description: Duplicates in the left array will be removed. Argument values:

• Left array: [ 1, 1, 2, 3 ]
• Right array: [ 2, 3, 4 ]

Output: [ 1 ]

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