ClickHouse/docs/en/sql-reference/aggregate-functions/reference/grouparraysorted.md

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groupArraySorted

Returns an array with the first N items in ascending order.

groupArraySorted(N)(column)

Arguments

• N – The number of elements to return.

• column – The value (Integer, String, Float and other Generic types).

Example

Gets the first 10 numbers:

SELECT groupArraySorted(10)(number) FROM numbers(100)

┌─groupArraySorted(10)(number)─┐
│ [0,1,2,3,4,5,6,7,8,9]        │
└──────────────────────────────┘

Gets all the String implementations of all numbers in column:

SELECT groupArraySorted(5)(str) FROM (SELECT toString(number) as str FROM numbers(5));

┌─groupArraySorted(5)(str)─┐
│ ['0','1','2','3','4']    │
└──────────────────────────┘