array_sort
array_sortβ
array_sort
descriptionβ
Syntaxβ
ARRAY<T> array_sort(ARRAY<T> arr)
Return the array which has been sorted in ascending order. Return NULL for NULL input. If the element of array is NULL, it will be placed in the front of the sorted array.
noticeβ
Only supported in vectorized engine
exampleβ
+------+-----------------------------+-----------------------------+
| k1 | k2 | array_sort(`k2`) |
+------+-----------------------------+-----------------------------+
| 1 | [1, 2, 3, 4, 5] | [1, 2, 3, 4, 5] |
| 2 | [6, 7, 8] | [6, 7, 8] |
| 3 | [] | [] |
| 4 | NULL | NULL |
| 5 | [1, 2, 3, 4, 5, 4, 3, 2, 1] | [1, 1, 2, 2, 3, 3, 4, 4, 5] |
| 6 | [1, 2, 3, NULL] | [NULL, 1, 2, 3] |
| 7 | [1, 2, 3, NULL, NULL] | [NULL, NULL, 1, 2, 3] |
| 8 | [1, 1, 2, NULL, NULL] | [NULL, NULL, 1, 1, 2] |
| 9 | [1, NULL, 1, 2, NULL, NULL] | [NULL, NULL, NULL, 1, 1, 2] |
+------+-----------------------------+-----------------------------+
mysql> select k1, k2, array_sort(k2) from array_test01;
+------+------------------------------------------+------------------------------------------+
| k1 | k2 | array_sort(`k2`) |
+------+------------------------------------------+------------------------------------------+
| 1 | ['a', 'b', 'c', 'd', 'e'] | ['a', 'b', 'c', 'd', 'e'] |
| 2 | ['f', 'g', 'h'] | ['f', 'g', 'h'] |
| 3 | [''] | [''] |
| 3 | [NULL] | [NULL] |
| 5 | ['a', 'b', 'c', 'd', 'e', 'a', 'b', 'c'] | ['a', 'a', 'b', 'b', 'c', 'c', 'd', 'e'] |
| 6 | NULL | NULL |
| 7 | ['a', 'b', NULL] | [NULL, 'a', 'b'] |
| 8 | ['a', 'b', NULL, NULL] | [NULL, NULL, 'a', 'b'] |
+------+------------------------------------------+------------------------------------------+
keywordsβ
ARRAY, SORT, ARRAY_SORT
