ARR_DISTINCT

SyntaxSyntax

ARR_DISTINCT( array )

DescriptionDescription

Removes duplicate elements from an array array, returning a new array with only unique elements. The order of elements in the returned array is not guaranteed to be the same as the input array.

Argument types:

• array — Array of fractional numbers | Array of integers | Array of strings

Return type: Same type as (array)

ExamplesExamples

ARR_DISTINCT(ARRAY(1, 2, 2, 3, 3, 3, 4)) = [1, 2, 3, 4]

ARR_DISTINCT(ARRAY(1.1, 2.2, 2.2, 3.3, 3.3, 3.3, 4.4)) = [1.1, 2.2, 3.3, 4.4]

ARR_DISTINCT(ARRAY('apple', 'banana', 'apple', 'orange', 'banana')) = ['apple', 'banana', 'orange']

Data source supportData source support

ClickHouse 21.8, Files, Google Sheets, PostgreSQL 9.3, Trino, Yandex Documents.