array_contains
Description
Syntax:
BOOLEAN array_contains(ARRAY<T> arr, T value)
This function checks if a value exists in an array. It returns the following values:
1 - the value exists in the array;
0 - the value does not exist in the array;
NULL - the array is NULL;Note:
It is only supported in vectorized engine.
Example
mysql> set enable_vectorized_engine=true;
mysql> SELECT id,c_array,array_contains(c_array, 5) FROM `array_test`;
+------+-----------------+------------------------------+
| id | c_array | array_contains(`c_array`, 5) |
+------+-----------------+------------------------------+
| 1 | [1, 2, 3, 4, 5] | 1 |
| 2 | [6, 7, 8] | 0 |
| 3 | [] | 0 |
| 4 | NULL | NULL |
+------+-----------------+------------------------------+
mysql> select array_contains([null, 1], null);
+--------------------------------------+
| array_contains(ARRAY(NULL, 1), NULL) |
+--------------------------------------+
| 1 |
+--------------------------------------+
1 row in set (0.00 sec)Keywords
ARRAY,CONTAIN,CONTAINS,ARRAY_CONTAINS