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

  1. mysql> select bitmap_has_any(to_bitmap(1),to_bitmap(2));
  2. +--------------------------------------------+
  3. | bitmap_has_any(to_bitmap(1), to_bitmap(2)) |
  4. +--------------------------------------------+
  5. |                                          0 |
  6. +--------------------------------------------+
  8. mysql> select bitmap_has_any(to_bitmap(1),to_bitmap(1));
  9. +--------------------------------------------+
  10. | bitmap_has_any(to_bitmap(1), to_bitmap(1)) |
  11. +--------------------------------------------+
  12. |                                          1 |
  13. +--------------------------------------------+

keywords

  1. BITMAP_HAS_ANY,BITMAP