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arrays_overlap

arrays_overlap​

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> 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