bitmap_has_any

description

Syntax

B00LEAN BITMAP_HAS_ANY(BITMAP lhs, BITMAP rhs)

计算两个Bitmap列是否存在相交元素，返回值是Boolean值.

example

1. mysql> select bitmap_has_any(to_bitmap(1),to_bitmap(2)) cnt;
2. +------+
3. | cnt  |
4. +------+
5. |    0 |
6. +------+

8. mysql> select bitmap_has_any(to_bitmap(1),to_bitmap(1)) cnt;
9. +------+
10. | cnt  |
11. +------+
12. |    1 |
13. +------+

keyword

1. BITMAP_HAS_ANY,BITMAP