orthogonal_bitmap_intersect
Description
Syntax:
BITMAP ORTHOGONAL_BITMAP_INTERSECT(bitmap_column, column_to_filter, filter_values)
This function calculates the intersection of bitmaps. The first argument is the bitmap column, the second is the dimension column used for filtering, and the third is a variable-length argument, which specifies filter values.
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