| --- |
| { |
| "title": "ARRAYS_OVERLAP", |
| "language": "en" |
| } |
| --- |
| |
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| |
| |
| ## 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; |
| ``` |
| |
| ### 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 |
