array_union function

Applies to: Databricks SQL Databricks Runtime

Returns an array of the elements in the union of array1 and array2 without duplicates.

Syntax

array_union(array1, array2)

Arguments

• array1: An ARRAY.
• array2: An ARRAY of the same type as array1.

Returns

An ARRAY of the same type as array.

Azure Databricks raises COLLECTION_SIZE_LIMIT_EXCEEDED if the result exceeds the array size limit.

Common error conditions

• COLLECTION_SIZE_LIMIT_EXCEEDED

Examples

> SELECT array_union(array(1, 2, 2, 3), array(1, 3, 5));
 [1,2,3,5]

Related functions

• array_compact function
• array_distinct function
• array_intersect function
• array_except function
• array_sort function
• array_remove function
• zip_with function