Array union

Supported in: Batch, Streaming

Removes duplicates and unions a list of arrays.

Expression categories: Array

Declared arguments

• Expressions - A list of arrays to union.
  List<Expression<Array<T>>>

Type variable bounds: T accepts AnyType

Output type: Array<T>

Examples

Example 1: Base case

Argument values:

• Expressions: [[ 1, 2, 3 ], [ 3, 4 ]]

Output: [ 1, 2, 3, 4 ]

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Example 2: Base case

Argument values:

• Expressions: [[ 1, 2, 3 ], [ 3, 4 ], [ 4, 5 ]]

Output: [ 1, 2, 3, 4, 5 ]

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Example 3: Base case

Description: Duplicates are removed. Argument values:

• Expressions: [[ 1, 1 ], [ 1 ]]

Output: [ 1 ]

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Example 4: Null case

Argument values:

• Expressions: [first_array, second_array]

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