orthogonal_bitmap_intersect

orthogonal_bitmap_intersect

description

Syntax

BITMAP ORTHOGONAL_BITMAP_INTERSECT(bitmap_column, column_to_filter, filter_values) 求bitmap交集函数, 第一个参数是Bitmap列，第二个参数是用来过滤的维度列，第三个参数是变长参数，含义是过滤维度列的不同取值

example

mysql> select orthogonal_bitmap_intersect(members, tag_group, 1150000, 1150001, 390006) from tag_map where  tag_group in ( 1150000, 1150001, 390006);
+-------------------------------------------------------------------------------+
| orthogonal_bitmap_intersect(`members`, `tag_group`, 1150000, 1150001, 390006) |
+-------------------------------------------------------------------------------+
| NULL                                                                          |
+-------------------------------------------------------------------------------+
1 row in set (3.505 sec)

keywords

ORTHOGONAL_BITMAP_INTERSECT,BITMAP