array_sort
Description
Syntax:
ARRAY<T> array_sort(ARRAY<T> arr)This function returns the array which has been sorted in ascending order. If the input array is null, it will return null. If there are null elements in the input array, the null elements will be placed at the forefront of the array.
Note:
It is only supported in vectorized engine.
Example
mysql> set enable_vectorized_engine=true;
mysql> select k1, k2, array_sort(k2) array_test;
+------+-----------------------------+-----------------------------+
| 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'] |
+------+------------------------------------------+------------------------------------------+Keywords
ARRAY, SORT, ARRAY_SORT