arrays_overlap

arrays_overlap

SinceVersion 1.2.0

arrays_overlap

description

Syntax

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

Check if there is any common element for left and right array. Return below values:

1    - if any common element inside left and right array;
0    - if no common element inside left and right array;
NULL - when left or right array is NULL; OR any element inside left and right array is NULL;

notice

Only supported in vectorized engine

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