| --- |
| { |
| "title": "BITMAP_FROM_ARRAY", |
| "language": "en" |
| } |
| --- |
| |
| ## bitmap_from_array |
| |
| ### description |
| #### Syntax |
| |
| `BITMAP BITMAP_FROM_ARRAY(ARRAY input)` |
| |
| Convert a TINYINT/SMALLINT/INT/BIGINT array to a BITMAP |
| When the input field is illegal, the result returns NULL |
| |
| ### example |
| |
| ``` |
| mysql> select *, bitmap_to_string(bitmap_from_array(c_array)) from array_test; |
| +------+-----------------------+------------------------------------------------+ |
| | id | c_array | bitmap_to_string(bitmap_from_array(`c_array`)) | |
| +------+-----------------------+------------------------------------------------+ |
| | 1 | [NULL] | NULL | |
| | 2 | [1, 2, 3, NULL] | NULL | |
| | 2 | [1, 2, 3, -10] | NULL | |
| | 3 | [1, 2, 3, 4, 5, 6, 7] | 1,2,3,4,5,6,7 | |
| | 4 | [100, 200, 300, 300] | 100,200,300 | |
| +------+-----------------------+------------------------------------------------+ |
| 5 rows in set (0.02 sec) |
| ``` |
| |
| ### keywords |
| |
| BITMAP_FROM_ARRAY,BITMAP |
