arrays_overlap
arrays_overlap
arrays_overlap
description
Syntax
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；
notice
仅支持向量化引擎中使用
example
mysql> set enable_vectorized_engine=true;
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
