1.2 KiB
1.2 KiB
title, language
| title | language |
|---|---|
| bitmap_has_any | zh-CN |
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
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 |
+------+
keyword
BITMAP_HAS_ANY,BITMAP