bitmap_from_array
description
Syntax
BITMAP BITMAP_FROM_ARRAY(ARRAY input)
将一个TINYINT/SMALLINT/INT/BIGINT类型的数组转化为一个BITMAP 当输入字段不合法时，结果返回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