ARRAYS_OVERLAP

arrays_overlap

arrays_overlap

描述

语法

BOOLEAN arrays_overlap(ARRAY<T> left, ARRAY<T> right)

判断left和right数组中是否包含公共元素。返回结果如下：

1    - left和right数组存在公共元素；
0    - left和right数组不存在公共元素；
NULL - left或者right数组为NULL；或者left和right数组中，任意元素为NULL；

举例

mysql> select c_left,c_right,arrays_overlap(c_left,c_right) from array_test;
+--------------+-----------+-------------------------------------+
| c_left       | c_right   | arrays_overlap(`c_left`, `c_right`) |
+--------------+-----------+-------------------------------------+
| [1, 2, 3]    | [3, 4, 5] |                                   1 |
| [1, 2, 3]    | [5, 6]    |                                   0 |
| [1, 2, NULL] | [1]       |                                NULL |
| NULL         | [1, 2]    |                                NULL |
| [1, 2, 3]    | [1, 2]    |                                   1 |
+--------------+-----------+-------------------------------------+

keywords

ARRAY,ARRAYS,OVERLAP,ARRAYS_OVERLAP