bitmap_has_any

bitmap_has_any

description

Syntax

BOOLEAN 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

mysql> select bitmap_has_any(to_bitmap(1),to_bitmap(2)) cnt;
+------+
| cnt  |
+------+
|    0 |
+------+

mysql> select bitmap_has_any(to_bitmap(1),to_bitmap(1)) cnt;
+------+
| cnt  |
+------+
|    1 |
+------+

keywords

BITMAP_HAS_ANY,BITMAP