array_compact function

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Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime 12.2 LTS and above

Removes NULL elements from array.

Syntax

array_compact(array)

Arguments

  • array: An ARRAY expression.

Returns

The function returns an array of the same type as the input argument where all NULL values have been removed.

Examples

> SELECT array_compact(array(1, 2, NULL, 3, NULL, 3));
 [1, 2, 3, 3]

> SELECT array_compact(array(NULL, NULL));
 []